May 14 (Bloomberg) -- The campaign to keep Scotland in the U.K. ahead of this year’s referendum on independence is losing ground, according to a monthly poll.
The survey by TNS published today showed 42 percent of respondents plan to vote to remain in the U.K., with 30 percent supporting independence. The 12 percentage-point gap was unchanged from the month before as the proportion of undecided voters dropped two percentage points to 28 percent. Among people who said they were certain to vote, the gap narrowed to nine points compared with 22 points in September, TNS said.
Scotland’s constitutional future will be decided on Sept. 18, with the main political parties in London united in their opposition to independence. Prime Minister David Cameron will visit Scotland this week as he steps up efforts to persuade the country’s voters not to abandon the 307-year-old U.K. in favor of creating a new sovereign state.
TNS also canvassed voters on how each side was putting across its message. It found 53 percent considered the pro-U.K. Better Together campaign negative, compared with 29 percent for the nationalists led by Scottish First Minister Alex Salmond.
The company said it polled 996 people at least age 16, the minimum to vote in the referendum, on April 23 to May 2. No margin of error was given.
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