A voter's opinion of President Donald Trump is influenced by how religious they are, according to a Gallup analysis.

Among those who describe themselves as highly religious, 51 percent said they approve of the job President Trump is doing. Forty-four percent of "moderately religious" people supported Trump; that figure drops to 32 percent among those who said they are not religious.

The numbers reflect an average of Gallup's presidential approval ratings from Jan. 20-March 15.

The results show religion plays a bigger role in people's opinion of Trump than it did for former President Barack Obama. According to Gallup, Obama's highest approval ratings - 63 percent - were among those who described themselves as not-at-all religious. Fifty-one percent of moderately religious people approved of Obama; 43 percent of highly religious people did. Obama's ratings come from Jan. 2-Dec. 30, 2016.

For former President George W. Bush, 36 percent of highly religious people approved of the job the he was doing, compared to a 26-approval rating for moderately religious people and 18 percent of people who said they weren't religious. The figures are from Nov. 1-Dec. 30, 2008.

"The difference in approval for Bush in late 2008 between those who are highly religious and those who are not religious (18 percentage points) is almost exactly the same as for Trump now (19 points). The gap for Obama in 2016 was 20 points, but in the opposite direction," Gallup noted.

Among Republicans, the effect of religion alone evaporates: 89 percent of highly religious Republicans approve of the job Trump is doing, compared with 87 percent of those who are moderately religious and 86 percent who are not religious. Among Democrats, approval is only four points different between those who are highly religious (11 percent) and those who are unreligious (7 percent).

Trump's latest approval rating

According to Gallup's latest daily tracking, Trump's approval rating is at 41 percent compared to 54 percent who said they disapprove of the job the president is doing. The numbers show a small rebound from the bottoming out that occurred on March 18, when Trump's approval rating hit a low of 37 percent.

Trump's approval ratings have been historically low as compared to recent presidents at the same point in their terms.