Sen. Josh Hawley (R-Mo.) has voted “Nay” to all of President Joe Biden’s Cabinet members that have come up for confirmation vote so far, making him the only senator to do so, bringing his tally to six.

Hawley voted “Nay” to Transportation Secretary Pete Buttigieg and Homeland Security Secretary Alejandro Mayorkas on Tuesday, Feb. 2.

In previous votes, Hawley voted against Defense Secretary Lloyd Austin, Treasury Secretary Janet Yellen, Secretary of State Antony Blinken, and Director of National Intelligence Avril Haines.

He gained a reputation as a “hard-liner’” after objecting to the Electoral College voting results. He was just recently accused of using rhetoric to incite pro-Trump supporters to allegedly storm the Capitol.

Democrat colleagues filed an ethics complaint against him, claiming Hawley “lent legitimacy to the mob’s cause and made future violence more likely.”

Top Senate Democrats last month called on Hawley to resign.

Hawley continues his protest at a Biden administration, after losing a book contract with a major publisher for supporting former President Trump’s outcry of the Nov. 3 election results, which Trump maintains he won “in a landslide.”

Before voting against the confirmation of Mayorkas, Hawley moved to delay the process and had objected to Alejandro Mayorkas going straight to the floor, preventing President Biden from having a Homeland chief already in place when he was inaugurated.

“On Day 1 of his administration, President-elect Biden has said he plans to unveil an amnesty plan for 11 million immigrants in this nation illegally,” Hawley said.

“This comes at a time when millions of Americans remain out of work and a new migrant caravan has been attempting to reach the United States. Mr. Mayorkas has not adequately explained how he would enforce federal law and secure the southern border given President-elect Biden’s promise to roll back major enforcement and security measures,” reported Newsmax.

The vote against Mayorkas hit 43, with other Republicans joining Hawley.

“My friends on the other side don’t have to agree with Mr. Mayorkas on the finer points of every policy, but surely we can all agree that he knows the department. He understands the threats to our nation’s security, and has what it takes to lead DHS,” Senate Majority Leader Chuck Schumer (D-N.Y.) said as he called for a vote to lift a Republican filibuster on the nomination.

On Jan. 26, Hawley and 44 other Republicans voted to object to the second Trump impeachment, arguing it wasn’t constitutional to impeach a former president.