A controversial Republican senator strongly criticized his party leader’s refusal to concede defeat without a full investigation into the election.

Sen. Mitt Romney (R-Utah) called President Donald Trump’s fighting spirit to do everything he can to win a second term a national disgrace.

“I understand the president is casting about, trying to find some way to have a different result than what was delivered by the American people but it is really sad in a lot of respects and embarrassing,” Romney said in a video shared on YouTube.

Romney, who lost the 2012 presidential election to Barack Obama, believes the incumbent should follow his example and give up hope of winning another four years in the Oval Office.

“The president could, right now, be writing the last chapter of this administration with a victory lap with regards to the vaccine,” he said. “After all, he pushed aggressively to get the vaccine developed and distributed—that is happening on a quick timeframe, he could be going out championing this extraordinary success.”

Romney described the president’s thorough approach to verifying who actually won the election as crazy.

“He is leaving Washington with a whole series of conspiracy theories and things so nutty and loopy that people are shaking their head wondering what in the world has gotten into this man?” Romney said. “I think that is unfortunate because he has more accomplishments than this last chapter suggests he is going to be known for.”

Romney was disappointed to learn more GOP candidates for the 2024 presidential race appear to have adopted a similar style of leadership to President Trump.

“As I look at the 2024 contenders, many of them are trying to become as much like Donald Trump as they can be,” he said. “Although I must admit his [the president’s] style and shtick is extremely difficult to duplicate. He is [an] extremely talented person from that standpoint.”

Romney openly admitted he was unhappy with the direction GOP policies have taken since President Trump was sworn into office on Jan. 20, 2017.

“I represent a very small slice of the Republican Party today but, you know, everybody has to stand up for what they believe in,” he said.

He has no intention of quitting the GOP and instead plans to influence the party from within.

“I think I am more effective in the Republican Party, continuing to battle for the things I believe in,” he said. “I think, ultimately the Republican Party will return to the roots that have been formed over the century, so we will get back at some point, and hopefully people will recognize we need to take a different course than the one we are on right now.”

The president believes now is not the time to give up and urged fellow party members to strongly contest the election outcome.

“[Joe Biden] did not win the election, he lost all six swing states by a lot,” he said on Twitter. “They then dumped hundreds of thousands of votes in each one, and got caught. Now Republican politicians have to fight so that their great victory is not stolen–do not be weak fools!”