With less than a week to go before the polls close in the Aug. 15 Senate primary election, President Donald Trump shook the political world with a tweet announcing his support for Sen. Luther Strange.

Strange, who had been in a public back-and-forth with challenger Mo Brooks over who was more loyal to Trump over the last month-and-a-half, accepted Trump’s endorsement with a laundry list of Trump policy items he hoped to achieve.

“I am so deeply honored and humbled to receive the endorsement and support of our President, Donald Trump,” Strange said in a statement immediately released following Trump’s endorsement. “It is an honor to work hard beside him to deliver upon his promises to the American people. Together, we will continue efforts to fill our courts with conservative judges, repeal Obamacare, offer tax relief to hard working Americans, lift this heavy burden of government regulations, rebuild our military and build that wall on our southern border. Our country stood upon a precipice last November, but the American voters spoke out loud and clear, tired of a stagnant economy, political correctness and politicians who don’t listen. President Trump’s election and hard work has given millions of people hope again and I’m proud to stand beside him to make America great again.”

The endorsement is a significant blow to Brooks’ chances to make the runoff. Brooks needed a big draw in north Alabama, where turnout might have been strong for this type of contest. However, Trump’s endorsement of Strange stands to dispirit some Brooks supporters.