Former Secretary of State Hillary Clinton took aim at one of President Donald Trump’s greatest insecurities on Sunday, needling him over the lackluster crowd at his Washington, D.C. military parade this past weekend.

Critics of the parade have constantly pointed to the obviously sparse crowds who showed up this weekend and the glum-looking White House officials who seemed to not want to be there

Law enforcement officials reported no arrests from the celebration in D.C. that drew several thousand parade watchers, with some demonstrators protesting against the show of military strength.