McConnell complains about 'candidate quality' while investing in Senate races for GOP contenders

Despite concerns over "candidate quality" in Senate races across the country, McConnell continues investing in GOP candidates, many of whom have criticized his leadership.

Kyle Morris covers politics for Fox News. On Twitter: @RealKyleMorris.

"I think there's probably a greater likelihood the House flips than the Senate," said McConnell, who has led the GOP in the Senate since 2007. "Senate races are just different, they're statewide. Candidate quality has a lot to do with the outcome."

Despite McConnell's remarks, The Associated Press reported that the McConnell-controlled Senate Leadership Fund (SLF) purchased $28 million in advertising this week to boost Republican J.D. Vance in Ohio, a seat many Republicans thought to be safe for the GOP. The SLF also announced this month that it had invested more than $34 million into the Pennsylvania Senate race featuring Republican nominee Mehmet Oz, who will face off against John Fetterman, the state's lieutenant governor and the Democratic Senate nominee, in the general election.