Original sentence: Since then there has recently been some controversy amongst UK politicians about the message this sends out, with some calling for its reclassification to Class B.The Government of Mexico voted to legalize the possession of cannabis under 5 grams on April 28, 2006
Edited sentence: However, there has recently been some controversy amongst UK politicians about the message this sends out, and attempts are being made to reclassify cannabis back to Class B  The Government of Mexico voted to legalize the possession of cannabis under 5 grams on April 28, 2006