Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
2010 United States Senate election in Pennsylvania
Table title:
Results
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Democratic </td><td class="highlighted"  colspan=1 rowspan=1 > Joe Sestak </td><td colspan=1 rowspan=1 > 568,563 </td><td class="highlighted"  colspan=1 rowspan=1 > 53.9% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Democratic </td><td class="highlighted"  colspan=1 rowspan=1 > Arlen Specter (Incumbent) </td><td colspan=1 rowspan=1 > 487,217 </td><td class="highlighted"  colspan=1 rowspan=1 > 46.1% </td></tr>
<tr> <th colspan=3 rowspan=1 > Total votes </th><td colspan=1 rowspan=1 > 1,055,780 </td><td colspan=1 rowspan=1 > 100.00% </td></tr>
</table>
Question:
Who were the top two finishers in the 2010 United States Senate election in Pennsylvania, and what percentage of vote did each receive?
Answer:
Sestak defeated Specter, garnering 53.9% of the vote, to Specter's 46.1%.