60 votes

There was a time early in Obama's first term where the democrats had a large majority in the house and a filibuster proof 60 vote senate and it was during this time that they passed Obamacare. If they had wanted they could have passed immigration reform giving a path to citizenship to the dreamers, they could have passed an infrastructure bill, or a tax reform bill to raise taxes on the rich. The total control of the senate (60 votes) lasted from September 24, 2009 until February 4, 2010. During this four month period the democrats could have passed most any legislation they wanted.