Whether certain presidential candidate likes Bitcoin or not, I'm quite sure that being publicly bullish on Bitcoin would pretty much be suicide election-wise. Simply put, a lot of Americans still think that Bitcoin is a scam, and being bullish on Bitcoin is one of the ways to not get you elected.

If he says those things, it wouldn't be a win for him, remember that the US has a really dumb population, they appeal and get their votes only for those that they find interesting or caters on their primal instincts which is really a cause for a alarm because one win from a really stupid president could end US as we know it.

Most definitely the business of electing the president of the most powerful country in the world does not just fall on whether the candidate is supportive of Bitcoin or not, whether it is discussed in the line of inflation failing the target with a considerable margin, too much QE, weakening US dollar, etc. Whether the presidential candidate is pro Bitcoin or anti Bitcoin won't make him win or lose an election. But if it has to be as shocking as letting go of the USD and replacing it with Bitcoin, I guess such a candidate whoever that is is meant to lose.

You are talking about at least 4 years in the future and we can never know what the situation is going to be by then. But generally speaking the US dudes are too in love with their US dollar and would do anything to try and prevent it from becoming obsolete. That means there will never be a "serious" presidency candidate who is "pro bitcoin" like the way you described.

Thats funny. Just because X-govt. failed to overcome the inflation or they are not able to manage the financial situation; they are not bad government. Bob went get elected for his prosperity in the bitcoin because thats not the solution! Government is not all about money all the time. It has to think, how they can recover the country's situation based on public support. If Bob thinks he can overcome inflation with bitcoin then thats really wrong. Most of the population in country believes in Fiat and not in bitcoin. So how Bob is going to recover the Taxes? If BTC is legal tender then everyone will go anonymous and government will start loosing more money. This way government will become more and more poor. I am not sure how based on BTC alone Bob can get elected.

The United States has always supported Bitcoin, including some American celebrities and companies that support Bitcoin. Musk has made an example of using Bitcoin as a payment method, allowing many people in the world to understand and recognize Bitcoin. But his move to give up the US dollar, I think it will not be recognized, which shocked me.

There arr still many people who have negative view about bitcoin. And bitcoin didn't become something that major in society, I think it will be hard for bob to be elected. USD is a power for USA I very sure that any US president will prefer like to support USD rather than any other currencies such as bitcoin and etc. Political issue is something that very complicated, enemy can be friends in something as long as both are get benefits. For me technology solve problems better than government regulations.

Looking back at the history of the old presidents, I'm not sure if people know or think like I do. 
When someone wants to make a financial difference without involving the FED, the end result is the same.
This issue I think would be better for the FED to support Bitcoin

If a president of a big-time country will promote bitcoins, this will means a huge pump. I think we already had those moments when the President of China said good things about cryptocurrencies and I think the price was pump really high just a few hours after his statements. from $8,000 to $12,000 if I'm not mistaken. What more if the president of the USA will say the same or even promising words. I think the whole crypto industry will be shaken by those words and the crypto market will be like a green garden again.

I would be very skeptical of such a scenario and to be honest, it largely depends on the very perception of the American public at large, and how they view crypto and blockchain in general as compared to the US dollar. If a presidential candidate comes up with such statements in which he thrashes the US dollar and promotes bitcoin while the public considers it otherwise, it might be a smooth political suicide for the candidate. It's very subjective to be predictable.