Donald Trump may seek improved relations with Russia, but top Republican Sen. Lindsey Graham wants Vladimir Putin held responsible if the Russian government was involved in cyber-hacks to disrupt the U.S. elections.Donald Trump may seek improved relations with Russia, but&nbsp;top Republican&nbsp;Sen. Lindsey Graham&nbsp;wants Vladimir Putin&nbsp;held responsible if the Russian government was involved in cyber-hacks to disrupt the U.S. elections.Graham, who has sparred&nbsp;openly with Trump, his former rival in the presidential primary, is proposing&nbsp;that Congress hold a series of hearings on "Russia's misadventures throughout the world" &ndash; including whether they were involved in "hacking into the DNC.""Were they involved in cyberattacks that had a political component to it in our elections?" Graham said.If so, Graham said, "Putin should be punished."U.S. officials allege&nbsp;that Russia was involved in the hack on the Democratic National Committee that resulted in the release of sensitive emails ahead of the election.Graham is one of the Senate's leading foreign policy experts and his scrutiny of Putin comes as Trump's desire for closer ties with Russia has drawn deep concern from the national security establishment."Here's what I would tell Republicans: We cannot sit on the sidelines as a party and let allegations&nbsp;against a foreign government interfering in our election process go unanswered because it may have been beneficial to our cause," Graham added.The South Carolina senator acknowledged differences with Trump &ndash;&nbsp;"clearly, me and the Donald have issues," he said &ndash; but he offered an olive branch to "do&nbsp;everything to help him, because he&rsquo;ll be commander in chief in dangerous times.""He&nbsp;wants to reset with Russia. Maybe&nbsp;he can do it. But here&rsquo;s my view about Russia: They're a bad actor in the world and they need to be reined in," Graham said."He is the president of the United States, and he is the leading diplomat for the country, but Congress has a role."