<div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Former senior Joe Biden advisor Mike Donilon told the House Oversight Committee on Thursday that he was paid $US4 million ($6.2 million) working on the former US president's 2024 campaign.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>He was set to receive an additional $US4 million if he was reelected, a source familiar with the matter told CNN.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>While Donilon's $US4 million salary was first detailed in the book </span><em><span>Original Sin</span></em><span>, the possible $US4 million additional payout for a Biden reelection victory was not previously known.</span></div></div><div><div id="adspot-mobile-medium"></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><strong><span>READ MORE:</span></strong><span> </span><a href="https://www.9news.com.au/national/australian-exporters-brace-for-new-wave-of-us-tariffs/45ac5223-23f2-48af-b4cf-44c633ab3c7b" target="_blank"><strong><span>Australian exporters watch anxiously as Trump tariff deadline nears</span></strong></a></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>In his closed-door testimony to the committee, Donilon defended former US President Joe Biden's fitness for office amid reports about his mental and physical decline during his time in the White House.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>"What I saw, day in and day out, was a leader who was deeply engaged and in command on critical issues, both at home and abroad," according to a copy of Donilon's opening statement obtained by CNN.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Donilon's testimony to the committee comes as the Republican-led panel has interviewed Biden's top White House aides this week as part of its intensifying investigation into the former president's cognitive decline and possible efforts to conceal it from the public.</span></div></div><div><div class="OUTBRAIN" data-reactroot="" data-src="//www.9news.com.au/world/former-biden-advisor-told-house-panel-he-was-set-to-receive-8-million-if-president-won-reelection/1b98275e-8945-4088-b829-2e126f94b55d" data-widget-id="AR_5"></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>"I believed that President Biden was the best person to lead the country on the day he took the oath of office and I continued to believe that was true every day he served as president," Donilon said in his statement.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>CNN has reached out to Donilon for comment.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>This week the committee also met with former Biden counsellor Steve Ricchetti, who called the probe an "unprecedented effort" to intimidate the prior administration</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Several Biden aides have declined to cooperate with the committee's investigation and invoked their Fifth Amendment right against self-incrimination after being subpoenaed to appear.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Earlier this month, three Biden aides, White House physician Dr. Kevin O'Connor, former assistant to the president and senior advisor to the first lady Anthony Bernal and former assistant to the president and deputy chief of staff Annie Tomasini – who previously served as director of Oval Office Operations – pleaded the fifth in the face of questions from the panel.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><a href="https://www.9news.com.au/national/how-to-follow-9news-digital/29855bb1-ad3d-4c38-bc25-3cb52af1216f"><em><strong><span>DOWNLOAD THE 9NEWS APP</span></strong></em></a><em><strong><span>: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the</span></strong></em><span> </span><a href="https://apps.apple.com/au/app/9news/id1010533727"><em><strong><span>Apple App Store</span></strong></em></a><span> </span><em><strong><span>and</span></strong></em><span> </span><a href="https://play.google.com/store/apps/details?id=nineNewsAlerts.nine.com&amp;hl=en_AU&amp;pli=1"><em><strong><span>Google Play</span></strong></em></a><em><strong><span>.</span></strong></em></div></div>