Here's a look at some of the far-right voices gunning for power in Western Europe.
Country: Austria
Who: Norbert Hofer
Hofer, 45, is the front-runner in this Sunday's presidential elections in Austria. His surprise win in the first round last month prompted the resignation of former chancellor Werner Faymann, whose earlier support for welcoming refugees sparked a public backlash.
In Austria, Hofer's rise is attributed in part to his easy manner, and he's been described by some as being just like your next-door neighbor. Although the role of president is traditionally ceremonial in Austria, he has vowed to fire the coalition government in charge if it doesn't control migration. If it rises to full power, his Freedom Party has vowed stricter border control, faster deportations of rejected migrants and increased monitoring of Muslim institutions, such as mosques and schools.
Country: France
Who: Marine Le Pen
In many respects, Marine Le Pen is Europe's pioneer in attempting to cast the populist far right in a more respectable light. Where her biological and political father, Jean-Marie Le Pen, was overtly racist and particularly anti-Semitic in his remarks, Marine sought to sanitise the party and distance herself from such statements when she took over as leader of the National Front in 2011. She was also among the first to fully refocus far-right antipathy from Jews to Muslims - a switch now in full swing across the continent.
In December, Le Pen spectacularly lost her bid to govern the northern region of Nord-Pas-de-Calais. But her loss came only after the Socialists pulled out and begged voters to support her opponent. She is polling high enough to be a threat in the 2017 presidential elections, and she may at least make it to the second round of voting, when she would probably face a candidate from France's political mainstream.
Country: Britain
Who: Boris Johnson
The king of political comedy, London's conservative former mayor with a trademark shock of straw-colored hair is known for blending his blind ambition with buffoonery. While not a card-carrying member of Europe's far right per se, his use of populist tactics has defined his career.
Now a member of Parliament, he has positioned himself as the even more conservative alternative to Prime Minister David Cameron. He is stoking nationalist sentiments in his bid to push Britain to exit the European Union - an institution he recently compared to Adolf Hitler.
Country: Norway
Who: Sylvi Listhaug
A rising star in her populist Progress Party, this daughter of Norwegian farmers is known for her reality-show-like aplomb, including a stunt that found her floating in a survival suit off the coast of Greece in an attempt to better understand the refugee crisis.
Since becoming Norway's migration minister in December, she has taken a harsh stance -- including deporting rejected asylum seekers to Russia in sub-zero weather in what may have been a breach of international law. Observers say she could rise to the highest ranks of her party.
Country: Denmark
Who: Kristian Thulesen Dahl
Thulesen Dahl does away with the notion that there are no soft-spoken populists, leading his Danish People's Party to electoral gains with even-tempered finesse. Yet he has done it while stoking the fires of fear over migration. In 2013, Thulesen Dahl called on Denmark to accept fewer immigrants from Muslim countries and has suggested there is no room in his country for more Muslims. In 2015, he led his party to stunning gains that made it the second-largest party in Parliament.
Country: The Netherlands
Who: Geert Wilders
One of the most divisive political figures in Europe, far-right Geert Wilders has seen his popularity ebb and flow over the years. But he has seemingly capitalised on the refugee crisis, claiming allegations of rape and abuse of European women by migrants is proof of the anti-Islam warnings he's been issuing for years.
He has compared the Koran to Hitler's Mein Kampf and called for a ban on Muslim immigration. More recently, he has handed out fake cans of pepper spray to women while warning against "Islamic testosterone bombs". A January poll showed his Freedom Party surging in popularity.
