Ted Cruz engages in an online spat over Biden's HHS secretary nominee who sued the Trump administration more than 100 times

• Ted Cruz opposes the nomination of Xavier Becerra as Secretary of Health and Human Services.

• Cruz insists that the role should be filled by a scientist and not an attorney.

• Kevin M. Kruse called out Cruz for dismissing Becerra's tenure as a former congressman and current attorney general.

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GOP Sen. Ted Cruz of Texas, well-known for his public Twitter spats, engaged in an online battle earlier this week regarding the qualifications of Xavier Becerra, the California Attorney General who has been nominated by President Joe Biden to lead the Department of Health and Human Services.

Cruz has expressed opposition to Becerra, arguing that the HHS nominee should be a doctor as the country remains mired in the coronavirus pandemic.

"President Biden has nominated an attorney - someone who lacks the necessary experience and skills to serve as Secretary of HHS," Cruz said earlier this month. "Voting to confirm an HHS Secretary with absolutely no medical or scientific experience is simply irresponsible."

On Fox News earlier this week, Cruz reiterated his sentiments about Becerra.

"If a Republican nominated a trial lawyer to lead the Health and Human Services department in the midst of a global pandemic, they would be laughed out of the room because it would be absurd," Cruz said.

Princeton University professor and historian Kevin M. Kruse took notice of Cruz's comments and pushed back against the questioning of Becerra's qualifications on Twitter.

"He was a US Congressman from 1993 to 2017, and then served as the attorney general of California, but sure, dismiss him as a 'trial lawyer,'" he wrote.