The 2016 race for the White House is getting tighter.

538.com has Democrat Hillary Clinton with a 53.5 percent chance of winning the November election as compared to 46.5 percent for Donald Trump. Those numbers would put Clinton with 275.7 electoral votes - and 46 percent of the popular vote - to Trump's 261.7 electoral votes - or 44.6 percent.

The latest figures show a dramatically tightening race from a little less than a month ago, when Clinton's chance of winning was estimated to be at 80 percent and Trump's at 19.7 percent.

Swing states move towards Trump

The latest figures also put swing states Florida and Ohio going to the Republicans, with Democrats slightly edging out the GOP in Pennsylvania.

Those numbers from key states echo that of a recent poll that show Trump enjoying a post-convention bump in a host of battleground areas.

The CBS News Battleground Tracker Poll shows Trump now has 42 percent support - up from 40 percent the week before the convention - across 11 battleground states. Clinton has 41 percent.

Fifty-five percent of Republicans polled said Trump's message made them feel hopeful while 40 percent said it made them enthusiastic. Thirty-two percent of independents described Trump's speech as "hopeful"; 25 said it made them enthusiastic about the candidate; 25 percent said it scared them.

Among Democrats, 63 percent said Trump's speech in Cleveland was scary.

The poll was conducted among 2,131 registered voters across 11 states including Colorado, Florida, Iowa, Michigan, North Carolina, New Hampshire, Nevada, Ohio, Pennsylvania, Virginia and Wisconsin.