John Eastman, the lawyer who worked with former President Trump to overturn the result of the 2020 election, failed in an effort to block lawmakers from getting hold of thousands of his university emails. Instead, a federal judge indicated on Monday that he was likely to reject Eastman's attempt to halt a subpoena issued by the House January 6 committee - and ordered the two sides to begin the process of handing over information. 'The Court expects that the parties will work together with the urgency that this case requires,' said Judge David Carter in Santa Ana, California. It came after the House select committee probing last year's attack on the U.S. Capitol issued a subpoena to Chapman University for Eastman's emails. Investigators see the conservative law professor - a former clerk for Supreme Court Justice Clarence Thomas - as a key figure in the Trump effort to reject the election results. He authored memos outlining how the then president could overturn the outcome if Vice President Mike Pence refused to accept the electoral college results - what lawmakers see as the roadmap for a constitutional coup. Conservative lawyer John Eastman appeared alongside President Donald Trump's personal lawyer Rudy Giuliani at the Stop the Steal rally in Washington, D.C., on the day thousands of Trump supporters marched on the U.S. Capitol Investigators believe Eastman's memo's were central to Trump's strategy to persuade Vice President Mike Pence to reject congressional certification of the 2020 election In the event, Pence refused to bow to Trump's power and certified the electoral college results showing the Joe Biden was the winner of the 2020 election The committee directed Chapman University to turn over more than 19,000 emails relating to his work for Trump. During a court hearing on Monday, a lawyer for Eastman admitted that his client had been working for Trump during a number of key moments ahead of Jan. 6. They included being present at the Willard Hotel in Washington, D.C., with other Trump lieutenants, and when he met with Trump and Pence on Jan. 3 to discuss blocking congressional certification of the result. 'That work was done pursuant to representation of the president,' Charles Burnham said, according to CNN. However, Eastman used his Fifth Amendment protection against self-incrimination some 150 times during a deposition in December, according to a lawyer for the House. The House Committee also approached Chapman University for his emails, prompting the suit that ended up in California federal court. But Eastman suffered a blow to his effort to protect the communications when the university said in court that he had no right to use its servers when conducted private work for Trump, violating the university’s status as a nonprofit. At the end of the hearing, the judge set out a plan for Eastman to begin sharing information. Chapman University will give Eastman's legal team access to his nearly 19,000 emails by midday on Tuesday, so they can sort through and identify which emails they believe should stay confidential. Judge David Carter in Santa Ana, California, said he intended to rule against Eastman, who tried to block a subpoena requiring Chapman University to hand over his emails The judge or another third party will then decide which should remain secret and which are not covered by attorney-client privilege. It marks another win for the committee which has stepped up the pace of its work amid fears Republicans will retake the House in November's midterms. In the event, Pence refused to go along with the plan allegedly hatched by Trump and Pence - much to the fury of the president and the mob that ransacked the Capitol. Some chanted, 'Hang Mike Pence,' as they stormed the building. At the weekend, committee chairman Rep. Bennie Thompson said the investigation had spoken with former Attorney General William Barr. 'To be honest with you, we've had conversations with the former attorney general already,' he told CBS' 'Face the Nation show. 'We've talked to Department of Defense individuals. We are concerned that our military was part of this big lie on promoting that the election was false.' All rights reserved for this news site (dailymail) and under his responsibility