Lord Foulkes, who introduced a Bill in the House of Lords to stop the perk being axed, said campaigners will target the final two as they face party members in the final stages of the contest.
The peer said limiting the benefit to people who claim Pension Credit will would be “cruel”.
And he praised the Daily Express for campaigning to overturn the decision.
He said: “I have been very impressed by what the Express has been doing on this issue.”
Lord Foulkes, who worked for Age Concern when he was younger and is now the chairman of Age Scotland, said campaigners were drawing up plans to flood Conservative leadership hustings so they can challenge the candidates on the issue.
Pensioners are planning to target Tory leadership hustings to ensure TV licences are secured (Image: Daily Express )
“What we want to do is get pensioners to go along and try to get a pledge from them,” he said.
The Labour peer introduced a Private Members Bill that would force the government to take back responsibility for the benefit after hiving it off to the BBC.
Corporation bosses say the scheme is too expensive and from next June will only give free licences to over-75s who claim Pension Credit.
But around 1.2 million pensioners who are eligible for
