Democrats can easily lie about stuff because they've got the corrupt 'press' in their pockets. No one is going to 'fact check' democrats on anything that might make them look bad.
President Trump gave a triumphant State of the Union address on February 24th in which he (rightly) pointed out how much fuel prices had declined over his first year in office.
And then three days later he joined a long line of Republican morons in the White House by signed onto a stupid Middle East war that completely wrecked all the progress his administration had made up to that point. If this had all happened with a Democratic president in office, there wouldn't be enough power generating capacity in America to feed Trump's own hours-long meltdown on social media.