A new nationwide poll of key U.S. Senate races indicates Democrats stand to make gains in the chamber in November. But, Missouri’s U.S. Senate race is still very close, with incumbent Republican Senator Jim Talent holding a lead over Democrat challenger Claire McCaskill. The USA Today/Gallup Poll shows Talent with a 6 point lead over McCaskill among likely voters polled – 50 percent to 44 percent. Among registered voters polled, the two candidates are tied. The poll of 574 Missourians was taken from August 23rd through the 27th.