Abortion-rights groups outspend opponents by more than 6 to 1 in ballot measure campaigns

The groups promoting ballot measures to add amendments to the constitutions in nine states that would enshrine a right to abortion have raised more than $160 million.

That's nearly six times what their opponents have brought in, The Associated Press found in an analysis of campaign finance data compiled by the watchdog group Open Secrets and state governments.

The campaign spending reports are a snapshot in time, especially this late in the campaigns, when contributions are rolling in for many.

The cash advantage is showing up in ad spending, where data from the media tracking firm AdImpact shows campaigns have spent more than three times as much as opponents in ads on TV, streaming services, radio and websites.