Have the Republicans in congress read the Constitution on Impeachment and the case law and legal opinions written over the years. Their arguments defending Trump do not indicate they have.
Impeachment is a power given to congress by the Constitution
U.S. Constitution, Article II, section 4
The Constitution gives the House of Representatives the sole power to impeach an official, and it makes the Senate the sole court for impeachment trials.
short summary of opinions
The charge of high crimes and misdemeanors covers allegations of misconduct by officials. Offenses by officials also include ordinary crimes, but perhaps with different standards of proof and punishment than for non-officials, on the grounds that more is expected of officials by their oaths of office. Indeed the offense may not even be a breach of criminal statute. See Harvard Law Review "The majority view is that a president can legally be impeached for 'intentional, evil deeds' that 'drastically subvert the Constitution and involve an unforgivable abuse of the presidency' — even if those deeds didn’t violate any criminal laws."[1]
High crimes and misdemeanors - Wikipedia
Impeachment is a power given to congress by the Constitution
U.S. Constitution, Article II, section 4
The Constitution gives the House of Representatives the sole power to impeach an official, and it makes the Senate the sole court for impeachment trials.
short summary of opinions
The charge of high crimes and misdemeanors covers allegations of misconduct by officials. Offenses by officials also include ordinary crimes, but perhaps with different standards of proof and punishment than for non-officials, on the grounds that more is expected of officials by their oaths of office. Indeed the offense may not even be a breach of criminal statute. See Harvard Law Review "The majority view is that a president can legally be impeached for 'intentional, evil deeds' that 'drastically subvert the Constitution and involve an unforgivable abuse of the presidency' — even if those deeds didn’t violate any criminal laws."[1]
High crimes and misdemeanors - Wikipedia