portman, colleagues introduce bipartisan bill to retroactively extend ppp benefits to farmers, ranchers, and sole proprietors senators rob portman (r-oh), ben cardin (d-md), james lankford (r-ok), susan collins (r-me), angus king (i-me), tammy baldwin (d-wi), and roger marshall (r-ks) have introduced bipartisan legislation to extend more relief to farmers, ranchers, and sole-proprietors through changes to the paycheck protection program (ppp). 