[PLMerite]

“Florida state law prohibits any candidate from requesting a recount...”

If not a candidate, then who has standing?

[funfan]

Voters aka electors. Imagine if voters had tried this in 2008 and 2012 against Obama.

[Robert DeLong]

You don't need standing to ask for a recount. Any citizen can ask for a recount if they have the money to pay for it, though it varies from state to state.

A Brief Recount Primer

It covers:
Automatic Recounts
Requesting a Recount
Cost of the Recount
Recent Legislative Action on Recounts

The following is a PDF download that has state by state rules, but I can only point you to it via a google search results page.

Look for: Contested Election Recounts - The US Election Assistance Commission and Contested Elections and Recounts 2 - The US Election Assistance ...