(BBC) David Cameron has urged Gordon Brown to call a snap election - and said he believes the Conservatives can win.
He said the party would show at its conference in Blackpool it could offer the "real change" people wanted after "10 years of failure" under Labour .
Mr Cameron told BBC One's Andrew Marr programme Mr Brown needed to call an election to get a mandate to be PM.
The Conservative leader admitted it would be a "huge challenge" but said they were ready, adding: "We can win."
The party conference got under way on Sunday with a pledge to abolish stamp duty for first-time buyers of homes under ? 250,000.
There will also be proposals for new green taxes - including an Air Pollution Duty on airlines - which would help fund cuts in family taxes, Mr Cameron said.
The conference would be about "giving people more opportunity, power and control over their lives", he added.
He brushed off a Sunday newspaper poll suggested an 11 point Labour lead saying he believed Mr Brown "has left it wide open".
"We can all play the game of quoting polls, why not find out in a real general election. I tell you, I really want it.
"I think we have the opportunity to put a very compelling alternative to people - ten more years of failure or real change with the Conservatives."