President Donald Trump's endorsement prevailed again in the Texas Republican primary for Senate.

Incumbent Sen. John Cornyn lost to Attorney General Ken Paxton in the runoff on May 26 after Trump endorsed the latter candidate. Trump said Cornyn had not been loyal enough to him, and Paxton will face Democratic candidate James Talarico for the seat in November.

Cornyn alluded in a May 20 digital ad that putting scandal-embroiled Paxton up in the general election could lead to the first Democratic Senator from Texas since 1988.

Republicans also face an uphill battle in the midterms, which is often seen as a referendum on the presidency. So what do people think about Trump's job performance?

More: Trump's endorsement power in Florida defies low poll numbers

Trump's approval rating has been net negative for over a year and has been fluctuating but trending more negative over the last several months. Here is Trump's average approval rating on June 1, according to aggregators:

RealClearPolitics Poll Average: 40% approve, 57.8% disapprove

In a projection of Trump's state-level approval rating by The Economist using YouGov's data, Florida gives him a better-than-average approval rating. But it's still underwater at -13 percentage points.

Trump's approval hit a career low in an Economist/YouGov poll conducted May 22-26 among 1,520 U.S. adult citizens. (The poll's margin of error was about plus or minus 3.5 percentage points.)

Only 34% of Americans approved of his job performance, compared to 59% who disapprove, the poll found. That's net negative 26 points, lower than any other poll for either of Trump's terms or former President Joe Biden's term, per this pollster.