and are sometimes also classed as a major party. The nationalist Scottish National Party and Plaid Cymru hold a significant number of seats in their Home Nations, with the SNP controlling 56 of 59 Scottish Westminster seats at the 2015 United Kingdom general election, and every single Northern Irish seat is held by a regional party – either the republican Sinn Féin and Social Democratic and Labour Party, or the unionist Ulster Unionist Party and Democratic Unionist Party. As of 2019, the Green Party hold one seat and the Brexit Party is the largest British party in the European Parliament, despite holding no seats in the House of Commons. Also UKIP has achieved significant vote shares despite holding no seats in the Commons. Other parties that have held seats in devolved assemblies, the House of Commons or the European Parliament in the 21st century include the non-sectarian Northern Irish Alliance Party, the far right British National Party, the healthcare-focused Independent Community and Health Concern, the cross-community Northern Irish NI21, the cross-community feminist Northern Ireland Women's Coalition, the anti-austerity People Before Profit Alliance, the left-wing Northern Irish unionist Progressive Unionist Party, the left wing Respect Party, the left wing nationalist Scottish Socialist Party, the elderly interest Scottish Senior Citizens Unity Party and the unionist Northern Irish Traditional Unionist Voice and UK Unionist Party. Whether or not a party counts as a major party is a sometimes heated argument, since "major parties" as defined by Ofcom are entitled to more party political broadcasts than minor ones. Because of the regionalist nature of many parties, it is possible to be a major party in one part of the country and not another: for example, at one point UKIP was officially a major party in England and Wales, but a minor one in Scotland. No mainland British party is classed as a major party in Northern Ireland. A minor party is also a special type of political party registered with the Electoral Commission in Great Britain that is able to contest only parish and community council elections in England and Wales and has fewer reporting, financial and administrative requirements than an ordinary registered political party. United States In the United States, minor parties are often described as third parties. Minor parties in the U.S. include the Libertarian Party, the Green Party, Constitution Party, and others that have less influence than the major parties. Since