The latest campaign filings released this week are beginning to illustrate the contours of several highly watched Senate races while also raising questions about whether some members of Congress might seek retirement.

Candidates were required to file their federal campaign reports from the second quarter of this year, which spans between April and June, by Tuesday. Political groups and parties who report semiannually have until the end of the month to report their sums.

Here are five takeaways from the latest fundraising quarter:

Cornyn, Cassidy stay competitive despite GOP primary challengers

Sens. John Cornyn (R-Texas) and Bill Cassidy (R-La.), who are both facing primary challengers from their right, have been able to stay competitive in fundraising despite questions around how at risk they are of losing their primaries next year.

While Texas Attorney General Ken Paxton (R) technically raised more from his principal campaign than Cornyn — Paxton raked in $2.9 million, while Cornyn’s campaign raked in roughly $803,000 — Cornyn enjoys an overall total of close to $4 million between his principal campaign committee and joint fundraising committee.

Overall, only $2.7 million from Cornyn's political operation can go to him, given some of the money raised from his joint fundraising committee exceeds what can be doled out to a campaign, according to The Texas Tribune.

Cornyn’s allies are also ramping up their fundraising efforts. Texans for a Conservative Majority, a pro-Cornyn super PAC, raked in........

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