Why did Trump get a high support rate in the US election?

The results of the "Super Tuesday" primary election in the US presidential election were released, and Donald Trump and Hillary Clinton won the majority of votes respectively.

Trump is the richest American presidential candidate in history. After Trump announced his candidacy, he didn't put forward any specific political ideas, but generally said that his success in wealth proved his leadership ability, and he wanted to make the United States strong again. Lack of ideas does not prevent him from attacking existing foreign and economic policies. He recently reprimanded Mexican illegal immigrants in a TV interview. He said that the border management in the United States was lax, and rapists, drug dealers and murderers from Mexico flooded into the United States. If he is elected president, he will build a high wall along the southern border.

His remarks angered Latino immigrants. Many American TV stations canceled their contracts with him, and many companies terminated their commercial contracts with him. It is estimated that the direct loss caused by his remarks about attacking Mexican immigrants last month was between 50 million and 80 million dollars. But he was widely reported by American media, especially by all TV networks. Interestingly, after these remarks, Trump's support rate began to soar. The number of voters who supported him rose from 38% to 49%, while the number who opposed him dropped from 47% to 43%. Polls show that Trump's supporters come from members of the Tea Party. Two-thirds of the tea party members said that they supported him because their ideology was similar.