Morning Digest: What the fundraising tea leaves tell us about four possible Senate retirements

_{The Morning Digest is compiled by David Nir, Jeff Singer, and Stephen Wolf, with additional contributions from the Daily Kos Elections team.}

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Leading Off

● 2Q Fundraising: Daily Kos Elections is pleased to unveil our new charts rounding up second-quarter fundraising numbers for the House and Senate. Our data includes figures for every incumbent (excluding those who've said they're not seeking reelection) and notable announced or potential candidates.

These reports, among many other things, offer us some clues about which incumbents are raising the kinds of money that signal that they plan to run for reelection and which ones aren't. Four sitting senators in particular are still keeping everyone guessing about their plans.