Does This Make Any Sense?

Al Hunt gives us the latest defend-Lieberman-at-any-cost column. But I have no idea what this even means:

``A Lieberman loss is very bad for Democrats; it says we are one dimension on Iraq,'' says Peter Hart, a top Democratic polltaker. ``Politically, Iraq should be a debate about the Bush administration. A Lieberman defeat detracts from that.''

Can anyone decipher this?