Thank you!
Those results are down right depressing.
I wouldn't worry too much. Everyone in America knows who Hillary Clinton is. Not the same for most of our candidates. Most voters don't spend time on political forums and wouldn't know Walker, Cruz, Rubio or Paul if they stood behind them in line at the grocery store.
The gap will shrink as the field narrows and Republican front-runners grow in familiarity. Eventually, voters will close ranks and we'll start seeing 48%-50% polling, with the party in the lead flip-flopping.