President Donald Trump will request laboratory tests to determine the presence of drugs, both for himself and Democratic presidential candidate Joe Biden, prior to the Sept. 29 debates.

Biden’s unusual performance against his Democratic rival, Sen. Bernie Sanders (I-Vt.), in the last of the debates held on March 15 for the primary elections, caught Trump’s attention when he compared it to the performance of the previous 11 debates.

Trump believes that the improvement in Biden’s speech at the meeting with Sanders may have been due to the effect of drugs, he said in his interview at the White House for the Washington Examiner, published on Aug. 26.

“We’re going to call for a drug test, by the way, because his best performance was against Bernie. It wasn’t that he was Winston Churchill because he wasn’t, but it was a normal, boring debate,” Trump said.

Trump described how in the debates before Sanders, Biden wasn’t even consistent, but suddenly, in his last debate, he was.

Trump also requested that in the exchange with Biden the two stand, it seems that the Democrats would like their candidate to act in a seated position.

In fact, one of the most criticized aspects of Biden’s candidacy for the presidency is his apparent mental decay, labeled as such based on the many mistakes and confusions he has publicly made.

Often he or his campaign managers have had to contradict or modify his erroneous statements. Some of them are well documented.

Biden’s medical history shows that he underwent two brain surgeries for aneurysms.

A survey conducted last month indicates that 55% of participants believe that Biden, 77, “is in the early stages of dementia,” according to Zogby Analytics.

For some analysts, even the odds that Biden will not finish his first presidential term, if he wins the election on Nov. 3, are high, which is supported by the fact that of the 45 U.S. presidents, eight died during their terms.