The small privacy watchdog's funding will go up from $3.1 million to $7.5 million.
A government privacy board formally endorsed the NSA's online spying of foreign citizens.
The board previously said the NSA's phone records collection program was illegal.
A new bill would give the board “the teeth it needs," Sen. Ron Wyden said.
The analysis said NSA programs are legal and show “no trace” of “illegitimate activity."