Wall Street's main indexes were mixed on Tuesday as traders returned from a holiday-extended weekend, with the focus on key inflation data later in the week that could influence expectations for the Federal Reserve's rate-cut path. The possibility that the world's most influential central bank could kick off interest-rate cuts this year has sent Wall Street on a record-breaking rally since late 2023, with the Nasdaq and S&P 500 marking their fifth straight week of gains on Friday. However, expectations for the timing of rate cuts have see-sawed, with policymakers wary as the data still reflects sticky inflation.