Throughout Joe Biden’s presidency, he leaned on the outspoken former prosecutor and senator he selected as his vice president, Kamala Harris, to be the White House’s voice of unflinching support for reproductive health rights. Now, as Democrats rebuild their presidential ticket just a few months before Election Day, Harris would widely be expected to take an aggressive stance in support of abortion access if she became the party’s new presumptive nominee — hitting former President Donald Trump on an issue that could undermine his chances of victory. Biden endorsed Harris on Sunday when he anno…