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An increase to MPs' salaries is almost inevitable if the Prime Minister's bid to get rid of their foreign-travel perks is successful.

John Key yesterday asked Speaker Lockwood Smith to abolish the perk, saying it had "outlived its usefulness" and undermined public confidence in Parliament.

His call, which he said was backed by strong consensus in National's caucus, followed the resignation of Pansy Wong from the Cabinet over her husband's use of the air-travel rebate.

Should MPs lose holiday travel perks and get a pay rise? Here is the latest selection of Your Views: