Americans strongly back many proposed gun laws following two massacres in Texas and Ohio — while only a third approved of President Trump’s response to the mass shootings, a new poll released Sunday shows.

The NBC News/Wall Street Journal poll is among the first completed since the shooters armed with semi-automatic weapons killed 31 people and injured scores more in two shootings in El Paso, Texas, and Dayton, Ohio.

Nearly 90 percent of Americans told pollsters they support expanding background checks to cover all gun sales, while around three quarters said they would back “red flag” laws to take guns away from the mentally ill and a voluntary gun buyback program.

Nearly two thirds — 62 percent — said they would support legislation to ban the sale of assault rifles.

But only 25 percent would support banning the sale of handguns.

Nearly three quarters of Republican voters, 73 percent, told the pollsters they are worried the government will go too far in restricting gun rights.

Thirty-six percent of those surveyed approved of President Trump’s response to the shootings, while 52 percent disapproved.

The poll showed Trump’s approval at 43 percent — down two percent but within the margin of error.

Forty percent of those surveyed said they intend to support the president’s reelection bid next year.

“This is not an attractive set of numbers for an incumbent,” said Republican pollster Bill McInturff, who is one-half of the bipartisan duo that conducts the poll for NBC and The Journal.

The survey interviewed 1000 people from August 10 to August 14 and has a margin of error of 3 percent.