Trump plots revenge on Republicans who betrayed him as Senate trial looms

• President mulls third party amid impeachment debate
• Conviction over US Capitol attack still seems unlikely
• Robert Reich: Don't believe corporate anti-Trump hype
• Lloyd Green: Will Trump really start his own party?

Republican divisions over Donald Trump's second impeachment trial came into clearer focus on Sunday, as the former president spent his first weekend out of office plotting revenge against those he says betrayed him.

Related: Can Trump do a Nixon and re-enter polite society? Elizabeth Drew doubts it