A senior German lawmaker in Chancellor Angela Merkel's conservative party on Wednesday warned the Greek government not to backtrack on its reform commitments. Greek Prime Minister Alexis Tsipras has tried to rally his Syriza party before parliament votes on Wednesday on the second package of reforms demanded by Greece's international creditors to open talks on a new bailout deal. The bill will adopt into Greek law new European Union rules on propping up failed banks, but it does not include pension reforms curbing early retirement or raising taxes paid by farmers.