On Monday, Presidential hopeful Mitt Romney attacked the energy policies of President Barack Obama and urged voters in Pennsylvania to support him at this year’s election in November. Later in the day, Romney was to appear again in Pennsylvania with Florida Senator Marco Rubio.

The first-term Cuban-American senator has been considered one of the top picks for running as vice president on the Romney ticket this fall. Rubio is also the latest in a line of possible running mates that have campaigned for Romney. However, this is the first potential VP candidate to campaign with Romney since challenger Rick Santorum suspended his campaign.

Romney was at a R&D facility in Pittsburgh speaking to about 200 people when he said, “I would like you help on November 6, so you and your friends needs to get out and vote.”

He told the 200 plus supporters that Obama is leading the country down a road where energy costs will become more and more costly.

Romney mentioned a number of regulations that have been put in place that are making energy more expensive, such as not drilling in the Gulf, not drilling in the Outer Continental Shelf, not drilling in Alaska, trying to  impose fracking regulations and regulations involving coal; its mining and use.

When Santorum exited, it left the ex-Governor of Massachusetts without any significant opposition in the GOP presidential primary in Pennsylvania scheduled for Tuesday. Romney’s first appearance together with Rubio will be in Aston, near Philadelphia. On March 29, Rubio officially endorsed Romney.