I just have to ask: Is Donald Trump committing an act of potential political suicide by refusing to allow witnesses from his administration to testify before congressional committees?

Another president, Richard Nixon, sought to play the same card in 1974. It cost him bigly. President Nixon told House Judiciary Committee Chairman Peter Rodino he would get nothing more from the administration regarding the Watergate matter.

Rodino wouldn’t accept that. He was able to force the president to turn over pertinent material related to the break-in of the Democratic National Committee headquarters in June 1972. The rest, as they say, is history. The Judiciary panel approved articles of impeachment and then the president resigned.

Forty-five years later, Donald Trump is seeking to play the same hand. He is telling the current House Judiciary chairman, Jerrold Nadler, that he will withhold information from that panel as it seeks to uncover the truth into allegations of obstruction of justice into the Russia matter that’s been in all the papers of late.

Nadler doesn’t strike me as being any more likely to cave in to this president’s demands than Rodino was in 1974 when Richard Nixon tried to bully him.

I among those Americans who does not favor impeaching Trump. I want the House and the Senate to do their work. Special counsel Robert Mueller appears headed to Capitol Hill eventually to talk to both legislative chambers.

I want Mueller to state on the record whether he believes Trump committed a crime, whether he obstructed justice. If he won’t say it, well, we need to accept what we won’t get. Then again, if he says that president did commit a crime of obstruction, but that Mueller just couldn’t commit to issuing a criminal complaint, well . . . then we have a ballgame.

Richard Nixon’s stonewalling ended badly for his presidency in 1974. Donald Trump’s reprise of that strategy well could doom his own presidency.