LOS ANGELES (AP) — Rumbling into its final four weeks, the presidential campaign is playing out on both coasts and multiple fronts, with Republican Mitt Romney seeking stature on foreign affairs and President Barack Obama raising political cash by the millions.

Negative ads, charges of dishonesty and dwindling time are all setting the tone.

Romney delivered a detailed foreign policy speech that answered criticism that he has not been specific enough in describing how he would lead the country and drew sharp distinctions with Obama's approach. "Hope is not a strategy," Romney said in the address at Virginia Military Institute. He argued Obama's leadership has been especially lacking in the Middle East as chaos continues to grow.