By Ryan Boetel / Journal Staff Writer   Five weeks after suffering a stroke in New Mexico, U.S. Sen. Ben Ray Luján was greeted with a bipartisan standing ovation Thursday upon his return to the Senate. Video posted online showed Luján receiving the round of applause as he entered a meeting of the Senate Committee on Commerce, Science and Transportation. The 49-year-old hugged several of his colleagues and said he was teary eyed at moments throughout the day. “To everyone of you that sent me notes, that sent videos and all the prayers, it worked,” Luján said, his voice cracking...