Former Senate Democratic Leader Harry Reid is calling President Trump the 'worst' in the nation's history as he faces a cancer diagnosis that has failed to blunt his political jabs.

Reid, 79, unloaded on Trump in an interview for the first time since doctors discovered a lesion on his pancreas.

'Trump is an interesting person. He is not immoral but is amoral. Amoral is when you shoot someone in the head, it doesn't make a difference. No conscience,' Reid told the New York Times.

'I think he is without question the worst president we've ever had,' he continued. 'We've had some bad ones, and there's not even a close second to him.'

Former Senate leader Harry Reid called President Trump 'without question the worst president we've ever had' in an interview following his own cancer diagnosis

'He'll lie. He'll cheat. You can't reason with him,' said Reid, who represented Democrats in countless face-offs with Republicans as both a minority and a majority leader, ultimately helping to push through much of President Obama's agenda.

Reid, a former amateur boxer who once ran the Nevada gaming commission, was asked about comparisons between President Trump and a mob boss. Former FBI Director James Comey and others have made it.

'Organized crime is a business,' Reid said, 'and they are really good with what they do. But they are better off when things are predictable. In my opinion, they do not do well with chaos. And that's what we have going with Trump,' he said.

Reid said President Trump has 'no conscience' and is 'amoral'

Landra Reid (L) and her husband, former U.S. Sen. Harry Reid, attend a quarter final game of the Pac-12 Basketball Tournament between the Arizona State Sun Devils and the Oregon Ducks at T-Mobile Arena on March 9, 2017 in Las Vegas, Nevada. Reid placed a menorah on his desk and said he did it for a Jewish reporter who showed up to interview him

Senate Minority Leader Harry Reid, D-Nev., makes his way through the Senate Reception Room en route to the senate luncheons on his first day in the Capitol since injuring himself in a exercise accident, January 20, 2015

Reid also flashed his blunt social disposition and occasional breaches of etiquette when greeting Times reporter Mark Leibovitch.

When the reporter, who identifies as Jewish, showed up at Reid's Henderson, Nevada 'McMansion,' Reid pointed to a large gold menorah on his desk.

'I put this out here because I knew you were coming,' he said. Reid's wife, Landra, was born Jewish, but it is unclear whether he put it out for the Channukah-sesason interview or if it was already there.

Reid, who was partially blinded in a home accident involving an exercise band in 2015, also spoke bluntly about his own health and longevity facing cancer.

'As soon as you discover you have something on your pancreas, you're dead,' he said. He received the bad diagnosis in May.

Reid once called former President George W. Bush a 'loser' and a 'liar.'