The Senate on Thursday backed sweeping elections reform legislation that has polarized the legislature, resulting in marathon debate that kicked off Tuesday when Sen. Ted Harvey, R-Highlands Ranch, moved for the entire 126 pages to be read at length. The Democratic-controlled Senate passed House Bill 1303 by a party-line vote of 20-15, despite the stall tactic. Amendments were later approved by the House, which sent the bill to Gov. John Hickenlooper, a Democrat, for his signature. Sen. Angela Giron, D-Pueblo, and House Majority Leader Dickey Lee Hullinghorst of Boulder and Assistant Majority Leader Dan Pabon of Denver sponsored the measure. Senate Reading Clerk Max Majors on Tuesday during second reading read the bill for about two and a half hours, with help from staff. Long-time Capitol observers could not remember another time when such a long bill was read at length. During the redistricting debate of 2003, the reading clerk was asked to read Senate Bill 352, but the measure was only 20 pages. Republicans, who debated the bill on Tuesday into Wednesday morning for nearly seven hours, view its passage as a power grab. One by one they took to the well, drawing out debate on the measure, while Democrats mostly sat at their desks, choosing not to speak during the Republican filibuster.