Yes, the alt-right movement was a factor in Trump's election. He catered to the group during his entire campaign, with messages that went right up to the line, but never crossed it, giving Trump the ability to claim he was not part of the movement. His advisers were part of the movement, and he has unleashed a scary situation.
Many Americans, especially conservatives and those in rural areas, have held prejudiced beliefs for a long time. However, they felt ignored and overlooked by politicians, who they see as too "politically correct." They felt discriminated against for not being able to openly speak about their prejudices. Many of these people are now a part of the "alt-right" movement, and in Donald Trump, they finally saw someone who was against politicians and against "political correctness," who empowered them to speak their minds more openly, like he does.
Yes, it was. I am quite sure that the alt-right movement was a factor in Trump's election. Therefore, i believe that the Alt-right movement will either rise or fall down with Donald Trump. It is actually the exultant times for the alt-right movement, which was little known until this year, when it embraced Mr. Trump's campaign.
There are some people who misunderstand Trump's message, and take it to mean that he is a supporter of the far right. This is not a statistically significant group of people. There are not that many voting people in America that really want to bring back the alt-right movement of early Europe. It was not enough to influence the election.