No, you can't try an impeached former president

A more compelling precedent is the House’s decision not to impeach Richard Nixon. After he left office in 1974 to avoid certain impeachment and conviction, there was no movement to continue the process.

Beyond the constitution, there are strong policy and historical reasons an incoming administration shouldn’t seek recriminations against its predecessor. In some countries defeated former presidents and prime ministers are routinely prosecuted. America has lived more in accordance with President Lincoln’s message to the soon-to-be-defeated Confederacy: “With Malice toward none, with charity for all, with firmness in the right, as God gives us to see the right, let us strive on to finish the work we are in, to bind up the nation’s wounds.”

For the victorious Democrats to seek revenge against Donald Trump would set a terrible precedent, distract from President Biden’s agenda, and make it hard to heal the country. Better to move on.