Michael Reagan said the Republican Party is so off the rails in its handling of the 2016 presidential race not even his late father, President Ronald Reagan, would have lent his support.

In fact, added the veteran political analyst, even his late mother Nancy Reagan would have bailed on the GOP and its candidate Donald Trump and instead have supported Hillary Clinton.

Reagan dropped the bombshell in a scathing tweet posted Sunday, hours after The New York Times revealed Republican presidential candidate Donald Trump might not have paid federal taxes for as many as 18 years.

My father would not support this kind of campaign,if this is what the Republican Party wants leave us Reagans out.Nancy would vote for HRC https://t.co/jkjKBvlwHa — Michael Reagan (@ReaganWorld) October 3, 2016

I am glad my father is not alive to watch this...He would tell us to vote the down ticket to stop Hillary.. https://t.co/ruSKUGaEZ8 — Michael Reagan (@ReaganWorld) October 3, 2016

The tweet is one more chink in the armor of the GOP's support of Trump, who was heavily criticized last week for his comments about a former Miss Universe, Bill Clinton's past indiscretions and a suggestion Hillary Clinton has not been faithful to her husband.

"When I looked at what Trump said over the weekend … and he followed it up and then he made fun of [Clinton] walking the way she walked where she tripped and fell into her car when she had pneumonia," Reagan told "Newsmax Prime" on Newsmax TV Monday.

"I think it turned off more women. It certainly turned off my wife and daughter, and I think many other people around the globe. I thought, 'Gee, if Nancy was watching this, where would she be with this?' Nancy would be in the HRC column, the Hillary Rodham Clinton column."

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Reagan also said he's tired of people comparing Trump to his father.

"I have had it up to my eyeballs and so has the whole family with this whole thing of trying to equate Donald Trump to my father. He's not even close to that."

Reagan, one of the nation's leading conservative commentators, opposed Trump during the primaries, charging the billionaire was not a true Reaganite who supported big government programs while not supporting NATO.

In recent months, Reagan had indicated he would support Trump — before Sunday's tweet.

Reagan joins a growing list of conservative daily newspapers like the New Hampshire Union Leader, Dallas Morning News, and Arizona Republic — all of which have traditionally endorsed the Republican candidate but this year are backing either Clinton or Libertarian Gary Johnson.