'Backseat fireman' Trump brutally mocked for giving boneheaded advice on putting out Notre Dame blaze

President Donald Trump on Monday offered unsolicited advice for putting out the massive fire at Paris's iconic Notre Dame cathedral -- and he subsequently got buried in mockery.

Reacting to live video of the fire, Trump advised Parisian fire fighters that "perhaps flying water tankers could be used to put it out" and he exhorted them to work faster to get the situation under control.

"Must act quickly!" the president wrote.

Trump's tweet quickly drew the ire of some followers -- and one of them pointed out that launching high-pressure aerial water cannons onto an old wooden structure like Notre Dame could severely damage the building.

Check out some more reactions to the president's tweet below.