Kids are more likely to drink milk if it comes in a cup with Ronald McDonald's photo emblazoned on the side.
It seems something similar happens in politics.
Bill Bishop reports on a new poll of rural voters in several swing states. The poll gave voters two different positions on immigration and asked them which they preferred. In some cases, the positions were attributed to the Democratic and Republican parties; in others, there were no party labels. The result:
Rural voters supported the Republican position when the statements were labeled “Republican” or "Democratic."
When the same positions didn't have party labels, rural voters supported for the Democratic position.
See the chart below, from The Monkey Cage. (Red and Blue bars refer to each party's position, not to the political affiliation of the voters.)