Part of the problem is what Trump’s staff encountered after a few weeks of working with him: There is very little cognitive ability and there is even less desire in him to even want to understand anything. All of those problems were then compounded by his decline due to age, unhealthy diet, and other poor health decisions, along with his emotional and psychological instability. There is really no logical way to compare the two men.

Biden is rational and functioning. He can understand and explain complex problems and policies. He can read long reports and comprehend situations. He can write clear and concise messages. He understands our Constitution and our history. He can still ride a bicycle and walk long distances.

By contrast, Trump refused to read any report and resisted writing anything. In briefings, his staff said they had to explain even simple concepts in the most basic terms and use pictures to help him understand. He would not read or attend briefings. He boasted that he had never read the Constitution and did not intend to read it. He constantly struggled with his staff because he expected to rule like a king and didn’t understand that our Constitution gives the president administrative powers, not anything more. He often made false statements because he never cared to know our history or science or anything he had to know to do his job.That is how he ran up a total of over 20,000 lies in his 4 years as president. He needs to use a golf cart to get from a chip shot to the putting green and from one building to the next at the G7 summit meeting. He needed the assistance of an elderly gentleman to walk him down a handicap ramp. His poor health and psychological dysfunction has combined with age to make all of his inherent problems even worse.

The reality is that Trump was never fit for any government office even several decades ago and he is even less so now.

Addendum: The above response includes publicly known actions and statements by Trump or his direct staff and are readily available from many sources too numerous to post here with a simple internet search from credible sources.

These comments come from a lifelong Conservative, who worked on President Reagan’s campaign and other conservative causes and campaigns and currently serves on a civics education nonprofit’s board, and are shared by MILLIONS of other REAL conservative patriots, who fully recognize that DJT was never a Conservative, does not fit any former Republican platform, and could never live up to our Founders’ requirements for virtuous leaders.

From an Aug. 27, 2020 article:

"President Trump has visited or stayed at one or more of his properties on 394 separate days since becoming president. That figure amounts to almost one third of his time in office at one of his properties, or well over a year of his presidency."


https://www.citizensforethics.org/reports-investigations/crew-investigations/trump-500-visits-trump-properties/


And another, from the day he left the WH for good. With a chart of which days were spent where over the four years he was in office:

https://www.washingtonpost.com/politics/2021/01/20/trumps-presidency-ends-where-so-much-it-was-spent-trump-organization-property

Trump’s presidency ends where so much of it was spent: A Trump Organization property
Analysis by Philip Bump
National columnist
January 20, 2021
Were he elected, Trump promised, he’d be “working for you,” as he said that August. “I’m not going to have time to go play golf.”

It took two weeks for President Trump to find the time.
...
There were two periods where he made relatively few trips to his properties. The first was when the government was partially shut down at the end of 2018 after Trump demanded Congress appropriate money to build a wall on the border with Mexico. The other was at the start of the coronavirus pandemic... a lull that ended when a leading government official on the pandemic task force explicitly stated it was once again okay to play golf.

Here are Trump’s visits to his properties by the numbers:

Trump has visited a Trump Organization property on 428 days of his presidency, or one visit every 3.4 days. That means that he has visited on about two days of every week of his presidency.
Normally, those two days are weekend days. It was common for him to head to his golf club in Sterling, Va., on warmer weekends when he was in Washington. He visited that club on 106 days, probably playing golf on 103 of them. It was the property to which he paid the most visits.
He was president for 418 weekend days. He visited one of his properties on 240 of those days, or on 57 percent of them.
Trump probably played 261 rounds of golf as president. This is just an estimate because, unlike Obama, his team often wouldn’t report whether he was playing golf at his properties. If accurate, though, that’s a round every 5.6 days. By contrast, Obama played 333 rounds of golf — over twice as many years. That’s about once every 8.8 days.
Trump spent the most time at Mar-a-Lago. He was there for all or part of 142 days of his presidency over 32 visits. He was at his private club in Bedminster, N.J., on 106 days, the same number as the visits he paid to Sterling.
The course where Trump played the second-most rounds was Trump International Golf Club in West Palm Beach, Fla., a short drive from Mar-a-Lago. He played there an estimated 87 times.
As president, he visited 14 Trump properties in seven states, the District of Columbia and three countries, including Scotland and Ireland. He only played two rounds of golf that weren’t at Trump properties; both were in the company of then-Japanese Prime Minister Shinzo Abe in Japan.
The amount of government money spent shuttling Trump to his properties and then spent at the properties remains a bit murky. We know that Trump’s first four trips to Mar-a-Lago cost about $14 million, mostly in the costs of operating the aircraft necessary for the trip. If we assume that each trip to the resort costs about $3.4 million, that’s $109 million just for the Mar-a-Lago trips alone.
Not all of that money goes to Trump, of course. The Washington Post reported in October that the government had been billed about $2.5 million by Trump properties since he had taken office.
Interestingly, Trump only visited the Trump hotel in Washington about two dozen times, despite its proximity to the White House. He returned to Trump Tower in New York only eight times.