The definition of a hypocrite is as follows:
A person who acts in contradiction to his or her stated beliefs or feelings.
There are millions of front line workers who need to be vaccinated to do their jobs and save American lives. These are the people who should be at the front of the line. The rest of us, especially those who downplay or deny the virus can wait a little bit. I would go as far to say that if you believe that it is complete hoax or it is nothing more than a bad flu, you should be at the back of line. That person (if their beliefs are genuine), might also refuse to take the vaccine, believing it to be unnecessary.
The fact that they jumped the line tells me that they are hypocrites. If the Senators genuinely believed their own rhetoric, not getting the vaccine would be an obvious choice. But because they got it, that tells me that they know it is real and they know how dangerous it is.
I am going to end this post with the following tweet, because it simply says it all.