The effort to draft the resolution that would invoke a provision of the 14th Amendment began quietly in January and gained momentum over the weekend, as Democratic Sen. Tim Kaine of Virginia and Republican Sen. Susan Collins of Maine gauge whether the measure could attract bipartisan support.

The reception has been lukewarm so far from Democrats, who would prefer to see the former president convicted in the impeachment trial, and from Republicans, who fear political consequences in barring Trump from office…

Ackerman, a professor of constitutional law and political science at Yale University, told McClatchy that President Joe Biden would not be required to sign the resolution — but that nothing would stop him from voluntarily endorsing the effort, “vindicating the Constitution’s continuing importance.”

“The decisive precedent was established by Congress in 1869 when it implemented Section 3 through a Joint Resolution to disqualify all Confederate officials from service,” Ackerman said.