I have a form where users can search for legislators in the US. One of the search criteria is the Leadership Position, as a dropdown. It can look like this for example:
<select id="leadership-position">
<option value=""></option>
<option value="10">Assistant Minority Leader</option>
<option value="66">Majority Conference Chair</option>
<option value="68">Majority Conference Secretary</option>
<option value="72">Majority Leader</option>
<option value="80">Majority Whip</option>
<option value="89">Minority Conference Chair</option>
<option value="92">Minority Conference Vice Chair</option>
<option value="96">Minority Leader</option>
<option value="106">Minority Whip</option>
<option value="111">President Pro Tempore</option>
<option value="138">Speaker</option>
</select>
Whenever the first option is selected, then all legislators are displayed in the search results. When some non-blank option is selected, only legislators having that Leadership Position are displayed in the search results.
In such a case, what is the best text to display for the first option? Blank? I think it's the standard, but had some user feedback that this is confusing. What about "Any"?