The Republican and Democrat leaders of a Senate panel investigating alleged Russian interference in the US election have vowed a thorough inquiry. The pledge comes as a similar inquiry in the House remains mired in acrimony. <br/><br/>The Senate hearing begins today. Jared Kushner, President Donald Trump's son-in-law, is set to appear next week.<br/><br/>Ahead of the opening, Ranking Democrat Mark Warner said there may have been 1,000 Internet trolls in Russia generating fake news stories. He said today's session would examine how Russia may have used technology to spread disinformation in the US, including the possible generation of fake news for voters in key states, such as Wisconsin, Michigan and Pennsylvania.<br/><br/>Former National Security Agency director Keith Alexander will be one of those testifying today. Senate Intelligence Committee chairman Richard Burr said the panel would not shy away from the truth.<br/><br/>The Trump presidency has been unable to shake off allegations that members of its team colluded with Russian officials during the election campaign. The president has regularly dismissed the claims as fake news and Russia has also ridiculed the allegations.