Former President Trump criticized Senate Minority Leader Mitch McConnell (R-Ky.) on Monday for supporting funds for GOP Sen. Lisa Murkowski’s (Alaska) reelection bid against a fellow Republican rather than directing that money to Arizona Senate candidate Blake Masters’s (R) race against a Democrat.

“The Old Broken Crow, Mitchell McConnell, is authorizing $9 Million Dollars to be spent in order to beat a great Republican, Kelly, instead of $9 Million Dollars that could be used for Blake Masters, and other Republicans, that with this money would beat their Democrat opponent,” wrote Trump in a statement, referring to Kelly Tshibaka, who will face off against Murkowski in November.

Trump has endorsed both Masters and Tshibaka and called Murkowski, one of only seven GOP senators who voted to convict him in his second impeachment, “horrendously bad” and “barely” a Republican in his statement.

Murkowski is one of the more moderate Republicans in the Senate, specifically in her support of abortion rights.

A report by the Anchorage Daily News published on Thursday found that the Senate Leadership Fund, a Republican PAC with ties to McConnell, funded television, radio and internet ads in Alaska slamming Tshibaka in support of Murkowski.

McConnell has endorsed the incumbent in the race, rejecting the further-right Tshibaka, who is more in line with Trump.

Trump has ramped up his criticism of McConnell in recent months, including drawing vehement pushback for saying in a recent statement that the Kentucky Republican has a "death wish," which critics said amounted to a tacit call for violence.