Las Vegas, NV – The Nevada Senate race is getting so close that the candidates are squabbling over who is winning more support among the state’s Filipino-American veterans.

Senate Republican Dean Heller is claiming an endorsement from a new “Filipino-American veterans” group. Democratic challenger Rep. Shelley Berkley’s campaign says he’s exaggerating the group’s size and importance. The group hasn’t raised any money and is not part of a statewide coalition of advocates for Filipino-American veterans and their families.

The bickering is new evidence that the race for Nevada’s Senate seat is joining other tightening contests in the final two months of the election. Republicans once appeared to be on-track to gain the four seats they need to take control of the 100-seat chamber, but that’s no longer clear.