Trump's approval numbers should be higher alongside strong economy, says pollster

President TrumpDonald John TrumpTrump rips Dems' demands, impeachment talk: 'Witch Hunt continues!' Nevada Senate passes bill that would give Electoral College votes to winner of national popular vote The Hill's Morning Report - Pelosi remains firm despite new impeachment push MORE's approval numbers should be higher than they are given the state of the U.S. economy, pollster Rob Griffin said in an interview that aired Monday on "What America's Thinking."

"We're right after an election where Republicans were dealt a pretty big blow," Griffin, research director at the Public Religion Research Institute, told Hill.TV's Joe Concha. "This is right in that spot where the economy's roaring, and you might think, 'OK, this midterm should have gone pretty good.'"

"Now, Trump is seen as maybe underperforming as a president relative to what he should be doing," Griffin added. "There are people who think maybe if he just toned down his language, maybe if he just acted a little more presidential, you'd have somebody who this roaring economy would be really putting a Republican Party in a good spot."

Griffin was commenting on a new American Barometer survey that found that 72 percent of voters said a Republican should challenge Trump in the 2020 presidential primary, compared with 28 percent who said he should be the GOP nominee without first facing a challenger.

The same poll found that 43 percent of Republican voters want a GOP candidate to run against the president, a feeling shared by 78 percent of independents and 91 percent of Democrats.

Recent polling shows that Trump still enjoys widespread popularity within the GOP. 

Ninety-one percent of Republicans said they approved of Trump, according to recent Gallup tracking.

Employers in the U.S. added 250,000 workers to payrolls in October, according to figures from the Labor Department. The unemployment rate last month held at 3.7 percent, a 48-year low.

— Julia Manchester