Chart shows VoiceShare trend of Democrats versus Republicans from January 10-April 17.

In the first week of Republican primary season, Democrats only had 4% VoiceShare as all attention was on the Republican candidates and the results in Iowa and New Hampshire.  However, as it became clear that the Republican nominee would be Romney in early March, Obama and his team gradually began criticizing him and speaking about the election.  Democratic VoiceShare jumped from 5% in late February to 16% in mid-April.  In addition to Obama gaining more coverage, outside Democratic experts and local Democratic leaders and officials have also entered the picture.