source: Stevens was Senate President four four terms, from 2009 to 2012 and led a bipartisan coalition of 10 Democrats and 6 Republicans.
target: Stevens was Senate President for four terms. His terms were from 2009 to 2012. He led a bipartisan coalition. The coalition consisted of 10 Democrats and 6 Republicans.
references: Stevens was Senate President for four terms. His terms were from 2009 to 2012. He led a bipartisan coalition. The coalition consisted of 10 Democrats and 6 Republicans.