These are FBI stats:
http://www.disastercenter.com/crime/uscrime.htm
There were slight (very slight and short-lived) upticks during the administrations of Bush I and Bush II, but crime has mostly been going down for a quarter-century in the United States.
Lots of factors involved in the decline--but for those who keep saying "things were better before," what things *exactly* are you talking about? Not crime anyway!
[PS: In 40+ years as a voter I've never voted for a Dem for anything.]