By Gram SlatteryABU DHABI, June 24 (Reuters) - U.S. Secretary of State Marco Rubio begins a Middle East tour in earnest on Wednesday, seeking to reassure Gulf allies who view concessions in President Donald Trump’s Iran deal that include a proposed $300 billion fund as too generous to a regional foe.Arriving in Abu Dhabi late on Tuesday for a three-day Gulf trip, Rubio is undertaking his first high-level diplomatic mission on the agreement reached last week to end the four-month-old U.S.-Israeli war with Iran.

US Secretary of State Marco Rubio will travel to the United Arab Emirates, Kuwait, and Bahrain this week on his first official visit to the Gulf since the outbreak of the Iran war…

By Gram SlatteryABU DHABI, June 22 (Reuters) - U.S. Secretary of State Marco Rubio will travel Tuesday through Thursday to the United Arab Emirates, Kuwait and Bahrain, on a trip…