Robert Mueller, who is the special counsel in charge of the Russia investigation, oversaw the FBI when the agency allegedly hid evidence it had collected that showed that Russian officials were engaged in a bribery scheme aimed at growing their atomic energy business inside the United States.

The details were outlined in a report on Tuesday which showed that the evidence was withheld even from lawmakers as they questioned the Obama administration’s approval of the sale of Uranium One to Russia’s Rosatom, which led to Russia controlling 20% of U.S. uranium.

Former Rep. Mike Rogers (R-MI), who chaired the House Intelligence Committee during the time the FBI probe was being conducted, told The Hill that he was never made aware of anything regarding “Russian nuclear corruption,” though many of his fellow lawmakers were concerned about the deal, which was also approved by Hillary Clinton’s State Department.

“Not providing information on a corruption scheme before the Russian uranium deal was approved by U.S. regulators and engage appropriate congressional committees has served to undermine U.S. national security interests by the very people charged with protecting them,” Rogers said. “The Russian efforts to manipulate our American political enterprise is breathtaking.”

According to The Hill, there are strong ties between the high-level officials who were involved in the allegedly undisclosed investigation on the Russian bribery scheme and the current investigation into whether Trump campaign officials "colluded" with Russia during the 2016 presidential campaign:

The investigation was ultimately supervised by then-U.S. Attorney Rod Rosenstein, an Obama appointee who now serves as President Trump’s deputy attorney general, and then-Assistant FBI Director Andrew McCabe, now the deputy FBI director under Trump, Justice Department documents show.

Both men now play a key role in the current investigation into possible, but still unproven, collusion between Russia and Donald Trump’s campaign during the 2016 election cycle. McCabe is under congressional and Justice Department inspector general investigation in connection with money his wife’s Virginia state Senate campaign accepted in 2015 from now-Virginia Gov. Terry McAuliffe at a time when McAuliffe was reportedly under investigation by the FBI.

The connections to the current Russia case are many. The Mikerin probe began in 2009 when Robert Mueller, now the special counsel in charge of the Trump case, was still FBI director. And it ended in late 2015 under the direction of then-FBI Director James Comey, whom Trump fired earlier this year.

Mueller has come under fire after it was revealed that the attorneys on his staff made previous political donations to the Democratic Party, including to presidential candidate Hillary Clinton while making none to then-candidate Donald Trump.