Joe Biden's doctor called before Congress to explain his medical assessment of the 81-year-old president

The House Oversight Committee is looking to understand more about White House Physician Dr. Kevin O'Connor's role after conflicting statements on whether President Joe Biden received a cognitive test after his debate disaster.

White House spokeswoman Karine Jean-Pierre repeatedly insisted during a press conference Tuesday that Biden had not been to the doctor to take a mental acuity test, which contradicted the president's own statements during a meeting with governors last week where he said he saw his doctor after the debate and they determined everything was fine.

'The statements by the White House Press Secretary and President Biden appear inconsistent, and the Committee seeks to understand the extent of your role at the White House at this time,' Oversight Chairman James Comer wrote in a Saturday letter to the doctor.

O'Connor has never recommended that Biden take a cognitive test, according to a White House official who spoke with The Washington Post – and now House Republicans are wondering if it's because there is a financial conflict.

'The Oversight Committee is concerned your medical assessments have been influenced by your private business endeavors with the Biden family,' Comer wrote.

Biden denies that he has any long term mental issues and said in his first post-debate TV interview there are 'no indications of any serious condition.'

Speaking with ABC's George Stephanopoulos on Friday, Biden repeatedly rejected the idea of taking an independent medical evaluation that would show voters he is up for serving another term.

And now Rep. Comer is seeking clarity from Dr. O'Connor on his business involvement with Americore, where the president's brother, James Biden, was serving as principal. James sent $200,000 to President Biden while the company was experiencing financial distress.

'On March 1, 2018, the same day James Biden received the $200,000 wire transfer from Americore into his bank account, James Biden wrote a check to his brother, Joe Biden, for $200,000 for a 'loan repayment,' the committee letter reads.

It added: 'In February of this year, the Committee conducted a transcribed interview with James Biden. During the interview, James Biden confirmed that you provided him counsel in connection with the alleged work he was performing for Americore.'

'Given your connections with the Biden family, the Committee also seeks to understand if you are in a position to provide accurate and independent reviews of the President's fitness to serve.'