NEW : General puts heat on president , secretary of defense . Afghanistan commander in Afghanistan says more troops needed or war could be lost . Senate Minority Leader Mitch McConnell , R-Kentucky , told CNN that it was time for lawmakers to hear what McChrystal has to say . U.S. has 35,000 U.S. troops in U.S. ; other allies contribute 35,000 more . Support for Afghans war hit all-time low in opinion poll released last month .
NEW : General puts heat on president , secretary of defense . Afghanistan commander in Afghanistan says more troops needed or war could be lost . U.S. has 35,000 U.S. troops in U.S. ; other allies contribute 35,000 more . Support for Afghans war hit all-time low in opinion poll released last month .