{"id":157133,"date":"2020-06-05T13:18:24","date_gmt":"2020-06-05T17:18:24","guid":{"rendered":"https:\/\/irpp-policy-options.local\/authors\/marie-della-mattia\/"},"modified":"2025-08-26T15:31:23","modified_gmt":"2025-08-26T19:31:23","slug":"marie-della-mattia","status":"publish","type":"authors","link":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/","title":{"rendered":"Marie Della Mattia"},"content":{"rendered":"<p>Marie Della Mattia is a political strategist with over 30 years of experience. She\u2019s helped elect seven NDP premiers in five provinces. She was the lead political advisor on Jagmeet Singh 2019 tour as well as John Horgan\u2019s 2017 tour in BC and Andrea Horwath\u2019s 2018 tour in Ontario.<\/p>\n","protected":false},"featured_media":286584,"template":"","meta":{"_acf_changed":false,"content-type":"","ep_exclude_from_search":false},"class_list":["post-157133","authors","type-authors","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Marie Della Mattia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Marie Della Mattia\" \/>\n<meta property=\"og:description\" content=\"Marie Della Mattia is a political strategist with over 30 years of experience. She\u2019s helped elect seven NDP premiers in five provinces. She was the lead political advisor on Jagmeet Singh 2019 tour as well as John Horgan\u2019s 2017 tour in BC and Andrea Horwath\u2019s 2018 tour in Ontario.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/\" \/>\n<meta property=\"og:site_name\" content=\"Policy Options\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/IRPP.org\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-26T19:31:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/03\/Marie-Della-Mattia.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"200\" \/>\n\t<meta property=\"og:image:height\" content=\"200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@irpp\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/\",\"url\":\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/\",\"name\":\"Marie Della Mattia\",\"isPartOf\":{\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/08\/Marie-Della-Mattia.jpg\",\"datePublished\":\"2020-06-05T17:18:24+00:00\",\"dateModified\":\"2025-08-26T19:31:23+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#primaryimage\",\"url\":\"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/08\/Marie-Della-Mattia.jpg\",\"contentUrl\":\"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/08\/Marie-Della-Mattia.jpg\",\"width\":200,\"height\":200},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/policyoptions.irpp.org\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Authors\",\"item\":\"https:\/\/policyoptions.irpp.org\/authors\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Marie Della Mattia\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/policyoptions.irpp.org\/fr\/#website\",\"url\":\"https:\/\/policyoptions.irpp.org\/fr\/\",\"name\":\"Policy Options\",\"description\":\"Institute for Research on Public Policy\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/policyoptions.irpp.org\/fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Marie Della Mattia","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/","og_locale":"fr_FR","og_type":"article","og_title":"Marie Della Mattia","og_description":"Marie Della Mattia is a political strategist with over 30 years of experience. She\u2019s helped elect seven NDP premiers in five provinces. She was the lead political advisor on Jagmeet Singh 2019 tour as well as John Horgan\u2019s 2017 tour in BC and Andrea Horwath\u2019s 2018 tour in Ontario.","og_url":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/","og_site_name":"Policy Options","article_publisher":"https:\/\/www.facebook.com\/IRPP.org","article_modified_time":"2025-08-26T19:31:23+00:00","og_image":[{"width":200,"height":200,"url":"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/03\/Marie-Della-Mattia.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@irpp","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/","url":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/","name":"Marie Della Mattia","isPartOf":{"@id":"https:\/\/policyoptions.irpp.org\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#primaryimage"},"image":{"@id":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#primaryimage"},"thumbnailUrl":"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/08\/Marie-Della-Mattia.jpg","datePublished":"2020-06-05T17:18:24+00:00","dateModified":"2025-08-26T19:31:23+00:00","breadcrumb":{"@id":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#primaryimage","url":"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/08\/Marie-Della-Mattia.jpg","contentUrl":"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/08\/Marie-Della-Mattia.jpg","width":200,"height":200},{"@type":"BreadcrumbList","@id":"https:\/\/policyoptions.irpp.org\/fr\/authors\/marie-della-mattia\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/policyoptions.irpp.org\/fr\/"},{"@type":"ListItem","position":2,"name":"Authors","item":"https:\/\/policyoptions.irpp.org\/authors\/"},{"@type":"ListItem","position":3,"name":"Marie Della Mattia"}]},{"@type":"WebSite","@id":"https:\/\/policyoptions.irpp.org\/fr\/#website","url":"https:\/\/policyoptions.irpp.org\/fr\/","name":"Policy Options","description":"Institute for Research on Public Policy","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/policyoptions.irpp.org\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"}]}},"_links":{"self":[{"href":"https:\/\/policyoptions.irpp.org\/fr\/wp-json\/wp\/v2\/authors\/157133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/policyoptions.irpp.org\/fr\/wp-json\/wp\/v2\/authors"}],"about":[{"href":"https:\/\/policyoptions.irpp.org\/fr\/wp-json\/wp\/v2\/types\/authors"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/policyoptions.irpp.org\/fr\/wp-json\/wp\/v2\/media\/286584"}],"wp:attachment":[{"href":"https:\/\/policyoptions.irpp.org\/fr\/wp-json\/wp\/v2\/media?parent=157133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}