By Alex Lang New York (Knewz) — Nearly nine out of 10 Americans back requiring background checks for all gun sales, a new poll found. A recent national survey from Morning Consult and POLITICO found that 77 percent of people strongly support requiring background checks on all sales, while another 12 percent somewhat supported the idea. Only 7 percent of people opposed all gun sales facing background checks. The poll comes during a national debate on gun regulations in the wake of mass shootings in places such as Uvalde, Texas, and Buffalo, New York. Many have renewed calls to limit assault rif…