From my own personal experience, they will say anything to get into office. Once there, all they care about is staying there.
I supposedly have a City Council member, a Mayor, a County Commissioner, a Governor, ONE Representative in Congress, and two Senators elected to represent me. The only time they have ever contacted me was to ask for money and ask for votes. Never once did they ever ask what they could do for me. I have had a few letter-writing battles where I questioned their proposals as unconstitutional. They responded with BS, so I challenged them to a public debate on the issue. No one has accepted.