Today Senator Obama is giving a speech on his energy policy in Las Vegas.

Greg Sargent notices a strategy at play:

In a speech Barack Obama is set to give in Las Vegas, he really ratchets up the attacks on John McCain on energy, a battleground that will only increase in importance with new polls showing that energy policy is a paramount concern of voters.

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Obama’s Competitiveness Agenda

Yesterday in Flint, Michigan, Sen. Obama gave a speech on “Renewing America’s Competitiveness.”

Today in Raleigh, North Carolina, Obama launches his “Change that Works for You” Tour with a speech on the economy at the North Carolina State Fairgrounds. Doors open at 11:00 AM EDT. Watch for prepared remarks later on this morning.

After the speech, the campaign will host a conference call with our top economic advisors to discuss the tour and take questions.