Newsmax and DirectTV contract and programming

No TV provider guarantees any channel will always be available. They cannot force a channel to stay or agree to the terms they want. This is why all TV providers have that clause that channels/programming may change at any time. As such, this would not be "breach of contract" for anyone no matter what TV service you have.

If you are lucky, Newsmax is just doing the normal pulling the feed until a new agreement is reached. That is their right once the carriage agreement deadline came up for the old one.

https://www.directv.com/legal/directv-residential-customer-agreement/

(d) Our Programming Changes. Many factors affect the availability, cost and quality of programming and may influence the decision to raise prices and the amount of any increase. These include, among others, programming and other costs, consumer demand, market and shareholder expectations, and changing business conditions. Accordingly, we reserve the unrestricted right to change, rearrange, add or delete our programming packages, the selections in those packages, our prices, technologies used to deliver the Service, and any other Service we offer, at any time.