One of the heads of the Republican National Committee is in hot water with fellow conservatives after releasing a July 4th video in which she appears working out to a rap song. Lara Trump, the daughter-in-law of former president Trump who is carrying out his wishes within the Republican party, posted the video on Friday. Her caption included a reference to Independence Day, but there was no discernable theme to the video other than her working out and occasionally dancing. The video didn’t land well with several supporters of Trump. Want more breaking political news? Click for the latest headl…