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:
Heidi Heitkamp
Table title:
Electoral history
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 > Republican </td><td class="highlighted"  colspan=1 rowspan=1 > Kevin Cramer </td><td colspan=1 rowspan=1 > 178,876 </td><td class="highlighted"  colspan=1 rowspan=1 > 55.4 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Democratic-NPL </td><td class="highlighted"  colspan=1 rowspan=1 > Heidi Heitkamp (incumbent) </td><td colspan=1 rowspan=1 > 143,737 </td><td colspan=1 rowspan=1 > 44.6 </td></tr>
</table>
Question:
Who were the top two finishers in the election, and what percentage of vote did the winner receive?
Answer:
Cramer defeated Heitkamp with 55.4% of the votes.