No they cannot. There is a stupid thing in the Senate rules called a "Filibuster" ever heard of it? Democrats used it to block adding the Enforcement measures from the US House Republican bill to the Senate's bill.
Try actually READING a few of the posts to you and learning the facts of the matter instead of just posting your ignorant rants. Your posts on Immigration here on this thread demonstrate a painful ignorance of political and factual reality.
No, you're wrong. They used the *threat* of a filibuster to block enforcement measures.
The Republican majority has not once, not for one single issue in 5 years, called the Rats on their bluff to filibuster.
You seem to believe that the filibuster is something that works solely in favor of Rat obstructionists. That's wrong.
If Rat Senators were to filibuster for days or weeks over an issue the American public overwhelmingly disapproves of (amnesty for illegals), they would find themselves in deep trouble this November.
*That* is the "political and factual reality."