Of course they wont - they just pretend they will raise it will soon to make everyone believe in the dollar.
If they raise interest rates in any meaningful way, the housing market will crash and we will have another recession. A recession means the government would have to borrow even more, and unlike the last recession this time bond yields are almost negative! Insanely low interest rates and QE are needed to keep yields low and borrowing easy. If the fed raising rates causes another recession, they would be embarrassed to have to bring them back down again.
They are stuck with no options except to do nothing and pretend they are in control.