Nope. What they'll do is raise interest rates. Interest rate rises squeeze inflation out of the system, and also make a currency more attractive to investors, causing them to buy dollars to get the interest.
The Fed raised rates in december, and will likely raise again in either March or April. Given that other countries are not raising rates, the likelihood of the dollar crashing is slim to none.
Well, there may be a bubble in the stock exchanges. They are looking heavy! A lot of that confidence is based on speculation into Trump's ability to stimulate the economy...If Trump don't produce, things may get interesting. I don't think he will be able to produce those low skill, high wage jobs he promised his supporters....Skepticism may be needed here.
Interest rates don't just affect stock markets. They affect bond markets too. If interest rates rise, money market funds would be a nice place to place money risk-free and earn some interest. And the Americans are ahead of every where else in raising rates, so the likelihood of the dollar crashing is slim to none. In fact it might get too strong, hurting exports.