The Senate began voting on several provisions of its two-year, $109 billion transportation bill on Thursday and will continue voting into next week. Thirty non-transportation amendments have been proposed, and several votes have been taken, one of which rejected an amendment that would have accelerated approval of the Keystone pipeline. Sen. John Hoeven, R-N.D., vowed to continue pushing for Keystone, although in the House, Speaker John Boehner, R-Ohio, said they might drop that measure. "The current plan is to see what the Senate can produce," and pursue its bill, said Boehner. However, House Transportation and Infrastructure Chairman John Mica, R-Fla., is determined to gather enough votes for the House bill, a five-year plan costing $260 billion.