WASHINGTON - If matching presidential candidates to their positions on basic issues were like a "Jeopardy!" category, most Americans wouldn't earn a single dollar. Importing drugs from Canada? That's a Kerry issue, but nearly half either didn't know or thought Bush also supported changing federal law to allow for drug imports from Canada. Making abortions more difficult to obtain? Nearly one-third of those surveyed didn't know Bush alone supports more restrictions on abortion. Eliminating the tax on estates? Two-thirds didn't know that's a Bush proposal.