They made for a wildly varied slide show, designed by Russia to exploit divisions in American society and to tip the 2016 presidential election in favor of Donald J. Trump and against Hillary Clinton. The House Intelligence Committee provided on Wednesday the biggest public platform to date for a sample of the Facebook ads and pages that were linked by a trail of ruble payments to a Russian company with Kremlin ties.

“America, we have a problem,” said Representative Jackie Speier, a California Democrat who sits on the House committee. “We basically have the brightest minds of our tech community here and Russia was able to weaponize your platforms to divide us, to dupe us and to discredit democracy.”

Among the ads the committee made public at Wednesday’s hearing were a Bernie Sanders superhero promoting gay rights ...