vienna support austria rule social democrats slip since scandal embroil party ahead oct. 15 election tight battle far right second place poll show thursday foreign minister sebastian kurz conservative people party 34 percent ahead far right freedom party 27 percent accord research affairs poll publish tabloid daily oesterreich chancellor christian kern social democrats 22 percent percentage point give margin error 4.3 percent second place close call social democrats say last weekend unwittingly involve two facebook account make unsubstantiated allegations kurz party chairman announce resignation detail scandal unclear party launch investigation spokesman vienna prosecutor office say thursday open defamation inquiry persons unknown base complaint social democrats conduct investigation persons unknown defamation spokesman vienna prosecutors office say course must approach facebook ask help us seek persons unknown facebook say wednesday response request help social democrats assess request reply assessment complete like many poll austria online survey carry monday wednesday relatively small sample size 600 people wide margin error people party shoot first place opinion poll kurz take leader may party percent less support austrian rule party slip ahead oct. 15 vote poll