Presidential battle begins

As the race to the White House starts in earnest with the Iowa polls, Republican maverick Donald Trump leads Ted Cruz by seven points while former First Lady Hillary Clinton is three points ahead of her Democratic rival, Bernie Sanders

REPUBLICAN

Donald Trump 32

Ted Cruz 25

Marco Rubio 18

Ben Carson 8

Jeb Bush 4

DEMOCRAT

Hillary Clinton 48

Bernie Sanders 45

Martin O'Malley 3

Source: NBC News/Wall Street Journal/ Marist survey of 3,040 people between Jan 24-26. Margin of error ± 4.6 points (Republican), ± 4.7 points (Democrat)