The story

A new national poll suggests the battle for the Democratic presidential nomination between Sens. Hillary Clinton and Barack Obama is a tie.

Forty-six percent of registered Democratic voters questioned in a CNN/Opinion Research Corp. survey released Thursday support Obama as their party's nominee and 45 percent back Clinton.

It's a statistical tie when taking into account the poll's 4.5 percentage point sampling error on that question. Read full article »

All About Hillary Clinton • Barack Obama • John McCain