Donald Trump was endorsed by the Philadelphia police union and by the Fraternal Order of Police, which comprises 330,000 cops around the United States. (Getty Images)

Donald Trump was endorsed by the Philadelphia police union just hours after New Jersey cops arrested terrorist Ahmad Khan Rahami for bombing New York’s Chelsea neighborhood.

Trump’s endorsement by Philadelphia’s Fraternal Order of Police came shortly after the union’s president, John McNesby, slammed Hillary Clinton for disrespecting police and “blowing them off.”

“She just disregarded and blew the police off,” Nesby told CBS News. “You can’t go in and expect to get respect when you didn’t give it to us.”

Nesby explained: “We put out a questionnaire and she absolutely refused [to fill it out], with a nasty campaign rebuttal to why she wouldn’t.”

It’s unclear why one of Hillary’s many minions couldn’t fill out a simple questionnaire.

Nesby also said police officers around the country are furious that Hillary Clinton had invited the family of victims of police violence to speak at the Democratic National Convention but ignored the widows of cops killed in the line of duty.

“The Fraternal Order of Police is insulted, and will not soon forget that the Democratic Party and Hillary Clinton are excluding the widows, and other family members of Police Officers killed in the line of duty who were victims of explicit racism,” Nesby said in July.

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The 330,000-member national police union endorses Donald Trump for president, saying Hillary Clinton does not respect cops. (Getty Images)

Nesby said police officers were especially disgusted by Hillary’s entitled attitude of taking voters for granted.

“They didn’t care. Their attitude back in July was they were going to win this thing anyway, so who cares?” said Nesby. “Now the tides have turned a little bit and she’s on her heels.”

Last week, the nation’s largest law enforcement labor union  the Fraternal Order of Police said its 330,000 members endorsed Trump for president.

“He’s made a real commitment to America’s law enforcement and we’re proud to make a commitment to him by endorsing his candidacy,” read a statement from the FOP.

The escalating geopolitical threats from foreign and domestic terrorism have shone a spotlight on the critical role of police in protecting the homeland.

On Sept. 19, New Jersey police arrested Ahmad Khan Rahami just two days after he allegedly exploded a bomb in Manhattan’s Chelsea neighborhood.

Rahami, a 28-year-old Muslim from Afghanistan who was a naturalized U.S. citizen, was arrested after injuring two police officers during a gun fight.

Meanwhile, a political science professor with a near-perfect accuracy record predicts Donald Trump is a shoe-in to beat Hillary Clinton in November (see video).

Helmut Norpoth of Stony Brook University says Trump has an 87% chance of winning the election based on his statistical model, which has predicted the winner of the popular vote 100% of the time since it was launched in 1996.

Professor Norpoth said his statistical model has a 96% rate of accuracy when analyzing all U.S. presidential elections dating back to 1912.

“For elections from 1912 to 2012, the Primary Model picks the winner every time except in 1960 [when John F. Kennedy defeated Richard Nixon],” said Norpoth, co-author of The American Voter Revisited.