Clark Durant may be gaining traction in the Michigan GOP Senate primary.

Durant, a Grosse Pointe resident, released an advertisement on Thursday in which he criticized opponent Pete Hoekstra, a former member of the U.S. House of Representatives.

In the advertisement, Durant accused Hoekstra of “hypocrisy” and said Hoekstra “voted to increase debt and spending by trillions.”

In a separate statement, Durant blasted Hoekstra’s ad that ran during the Super Bowl—and generated plenty of controversy. Durant said the advertisement was “distasteful, demeaning, and un-American to use an Asian American woman to lash out at the Chinese government,” according to the Washington Post.

All this comes a day after Durant picked up an endorsement from Utah Sen. Mike Lee, according to National Journal.

Sen. Jim DeMint of South Carolina also told the National Journal that he is taking a close look at the Michigan race. He could make an endorsement soon.

The primary election for the U.S. Senate will be held on Aug. 7. The general election will take place Nov. 6.