IAG SA’s proposed takeover of Aer Lingus Group Plc contains risks for Ireland, one of the government’s most senior ministers said, adding to a chorus of lawmakers still to be persuaded by the deal.

Aer Lingus, based in Dublin, said last week that IAG’s 1.36 billion euros ($1.55 billion) bid is “compelling,” adding to pressure on the ruling coalition to sell the state’s 25.1 percent stake in the airline. IAG Chief Executive Officer Willie Walsh told lawmakers in Dublin last week that the offer is dependent on the government accepting its bid.

“In good times, Aer Lingus might expand rapidly as part of IAG,” Health Minister Leo Varadkar said in an interview with broadcaster Newstalk, aired on Sunday. “If IAG got into trouble, would it not pull back to core bases in London or Madrid? All these things would have to be considered.”

Varadkar joined lawmakers expressing reservations about the proposed deal even after Walsh last week strengthened his guarantees to the government to try push the proposal through. Walsh offered safeguards protecting routes between some regional airports and London, adding to assurances on not selling Aer Lingus’s slots at Heathrow and keeping key Irish routes for at least five years.

“He made an impressive case, but I still remained to be convinced,” Joe Costello, a lawmaker with the Labour Party, the smaller party in the coalition, said in an interview in Dublin. “When he comes back to us again, he needs to make a more persuasive case and he needs to improve his offer.”

Costello said at this point, based on the current IAG commitments, he didn’t expect parliament to back the deal even after the Aer Lingus board laid out its support.

“They may have said this was a compelling case,” Costello. “But the arguments on the other side are equally compelling, and maybe more so.”

Ireland’s Transport Minister Paschal Donohoe is still weighing his recommendation to cabinet, and Varadkar said the government “shouldn’t run away” from decisions just because a general election is due within about a year.

Aer Lingus, which today named Stephen Kavanagh as CEO, rose 3 percent in Dublin trading after Walsh made his additional guarantees at a parliamentary hearing last week in Dublin, and traded at 2.20 euros as of 11:23 a.m. on Monday, having dropped as low as 2.11 euros last week. The parent of British Airways is offering 2.55 euros in cash and dividends.

“We believe that there is an increasing momentum for the deal to receive a positive reception from all stakeholders,” said David Holohan, an analyst at Merrion Capital in Dublin. “The government will increasingly struggle to identify any reason not to provide full support to the proposed offer.”

This article was written by Dara Doyle from Bloomberg and was legally licensed through the NewsCred publisher network.

Photo Credit: Ground crew are seen parking an Aer Lingus Airbus A320 away from the passenger terminals at Dublin Airport. Paul McErlane / Reuters