If Trump wins in New Hampshire on Tuesday, is that it?

Nikki Haley is going to have to do really well in the New Hampshire primary if she wants to prove she has what it takes to beat Donald Trump to the Republican nomination. She came third in the Iowa caucuses and has to surge forward on Tuesday. But the chances are that Trump will bring his Iowa momentum with him to New Hampshire and come out well on top. Will that be it then? Trump all the way? They say that Iowa and New Hampshire are the ones which give a clear indication who is going to win the Republican nomination. So, yes, if Trump does well, he will be on a straight run to the nomination unless of course he is sent to prison or the US Supreme Court rules he can't run for the presidency because of his involvement in the January 6 2021 assault on the Capitol. Neither of these possibilities seem likely, so Haley, let alone Ron DeSantis, will have their work cut out for them if they decide to keep their campaigns going. I guess they will, provided the donations stay rolling in.