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:
Jacky Rosen
Table title:
2018
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 > Jacky Rosen </td><td colspan=1 rowspan=1 > 490,071 </td><td class="highlighted"  colspan=1 rowspan=1 > 50.4% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Republican </td><td class="highlighted"  colspan=1 rowspan=1 > Dean Heller (Incumbent) </td><td colspan=1 rowspan=1 > 441,202 </td><td class="highlighted"  colspan=1 rowspan=1 > 45.4% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > None of These Candidates </td><td colspan=1 rowspan=1 > None of These Candidates </td><td colspan=1 rowspan=1 > 15,303 </td><td colspan=1 rowspan=1 > 1.6% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Barry Michaels </td><td colspan=1 rowspan=1 > 9,269 </td><td colspan=1 rowspan=1 > 1.0% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Libertarian </td><td colspan=1 rowspan=1 > Tim Hagan </td><td colspan=1 rowspan=1 > 9,196 </td><td colspan=1 rowspan=1 > 0.9% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent American </td><td colspan=1 rowspan=1 > Kamau Bakari </td><td colspan=1 rowspan=1 > 7,091 </td><td colspan=1 rowspan=1 > 0.7% </td></tr>
<tr> <th colspan=3 rowspan=1 > Total votes </th><td colspan=1 rowspan=1 > 972,132 </td><td colspan=1 rowspan=1 > 100.0 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=6 rowspan=1 > Democratic gain from Republican </td></tr>
</table>
Question:
What's the result of 2018 election? How many votes did the Republican and Democratic candidates win?
Answer:
Democratic candidate Jacky Rosen defeated the Republican candidate Dean Heller with 50.4% of the vote to Heller's 45.4%.