United States President Donald Trump has kicked off a 32-day campaign tour ahead of the November midterm elections that could see his Republican Party hurt by his handling of the war on Iran and the economy.

On Thursday, Trump travelled from Washington, DC, for back-to-back rallies in Texas and Oklahoma.

At his first stop in Denton, Texas, Trump sought to shift the narrative around his drooping approval ratings, offering a personal assessment of his administration’s performance.

“I give us an A+ on the government, on economics, on everything,” Trump told a crowd of supporters at the Peterbilt Motors Company, a truck manufacturer.

The president also blamed unfair media coverage for his growing unpopularity, arguing that his pre-election rally blitz was necessary to set the record straight.

“We’re doing an extremely poor job of promotion and an extremely great job of running the country,” Trump said.

But Trump’s poll numbers have raised concerns about Republican prospects ahead of the November 3 midterm election.

Trump himself is not on the ballot, but Republican candidates across the country are seeking to defend the right-wing party’s majorities in both chambers of Congress, as well as key state and local offices.

The economy and Trump’s war on Iran are expected to weigh heavily on the election outcome.

On Thursday, The Associated Press and the NORC Center for Public Affairs Research released new poll results showing that 71 percent of Americans disapprove of the war, which has driven up the price of fuel.