As many times as his constituents want to re-elect him. The longest serving senator Robert Byrd had been elected to the senate 9 times and served 51 years 176 days. Patrick Leahy is presently the longest sitting Senator, elected 7 times and serving over 37 years to date, replacing Daniel Inouye of Hawaii (recently deceased) as the longest sitting senator, who had been elected 9 times and served almost 50 years.
You may take as many times as you wish.
As many times as they wish
Three times
A person can be elected president at most two times.
as many times as the member is elected
as many times as the people want
56
There currently is no restriction on how many times a congressman can be re-elected.
8
1 but there may be more times
May be 7 times
There are no legal restriction on how many times a person can be elected to these positions.