Donald Trump is backed by 35 percent of Republican primary voters – but almost two-thirds of Americans say the prospect of him occupying the White House scares them, according to a new nationwide poll.

The New York Times/CBS News poll was taken mostly before his controversial statement Monday proposing to temporarily bar Muslims from entering the US.

On the Democratic side, the poll found Hillary Clinton is maintaining her 20-point lead over Sen. Bernie Sanders of Vermont.

Trump leads his closest competitors – Sen. Ted Cruz of Texas (16 percent) and Ben Carson (13 percent) — by a more than 2-to-1 margin, the poll found.

While Carson’s support was cut in half since the last Times/CBS poll in late October, Cruz has quadrupled his share. Sen. Marco Rubio has the support of 9 percent of the voters – while the rest of the field has 4 percent or less.

A 54 percent majority of Democratic primary voters said they had made up their minds about whom they will support, while 64 percent of GOP voters said it was still too early to be sure.

According to the poll, 24 percent of voters expressed concern and 40 percent fear about what The Donald would do if elected president – while 23 percent said they are concerned and 34 percent scared about a Clinton presidency.

Voters were sharply divided along partisan lines.

While GOP voters were most likely to say they were excited (24 percent) or optimistic (41 percent), one-third of them say they are concerned or scared about Trump.

For Clinton, 22 percent of Democratic voters are excited and 54 percent are optimistic, while only 23 percent said they were concerned or scared.

The nationwide telephone poll was conducted Dec. 4-8 with 1,053 registered voters, including 431 Republican primary voters and 384 Democratic primary voters.

The margin of sampling error is plus or minus 4 percentage points for registered voters and plus or minus 6 percentage points each for Republican and Democratic primary voters.