Two new ads on the Arizona airwaves are offering a preview of how Republicans plan to tie Democrats further down the ballot to President Joe Biden following last month’s disastrous debate performance. 

“Arizonans witnessed Joe Biden incoherently try to defend his failed policies that allowed in millions of illegal immigrants, forced Arizonans to pay higher grocery and gas prices and made housing unaffordable,” a narrator says in a new TV ad from Senate Republicans’ campaign arm and…