Europarty. While no legal obligation exists to force the European Council to propose the candidate of the strongest party to the EP, it was assumed that the council would have no other choice than to accept the voters' decision. Therefore, following the victory of the European People's Party in the 2014 EP election, its lead candidate Jean-Claude Juncker was elected President of the European Commission. The two major parties are the centre-right European People's Party and the centre-left Party of European Socialists. They form the two largest groups, (called EPP and PES respectively) along with other smaller parties. There are numerous other groups, including democratic socialists, greens, regionalists, conservatives, liberals and eurosceptics. Together they form the seven recognised groups in the parliament. MEPs that are not members of groups are known as non-inscrits. Voter behaviour A 1980 analysis by Karlheinz Reif and Hermann Schmitt concluded that European elections were fought on national issues and used by voters to punish their governments mid-term, making European Parliament elections de facto national elections of second rank. This phenomenon is also referred to by some experts as the "punishment traps," wherein voters use the European Parliament elections and other European integration referendums as punishment for governments on account of bad economic performance. There is also a study that showed how voters tend to choose candidates of a party at the European level if it has a history of advancing specific issues that they care about. This is related to the second theory that explains voter behavior and it involves the so-called attitude voting in which voters are assumed to be acting on the basis of their attitude towards the European integration. This is analogous to the American two-party system in the sense that voting on issues and legislation in the Parliament only requires a yes or no vote, which means voter vote for options or candidates that are close to their ideals. Turnout had constantly fallen in every EU election from 1979 until 2014. The 2019 election, however, saw turnout increase to its highest level since 1994, at 51%. In 2009, the overall turnout was at 43%, down from 45.5% in 2004. In Britain the turnout was just 34.3%, down from 38% in 2004. Despite falling below 50% between 1999 and 2014, turnout was not as low as that of the US Midterm elections, which usually falls below 40%. However, the comparison with the