The upcoming Democratic Primary debates could have an odd effect.

[MineralMan]

3. Another note: Delegate counts will be somewhat inaccurate until

each state holds its state convention, where the actual delegates are elected. However, the estimates you'll see right after each primary will be close to the final numbers. The methodology for delegate selection varies from state to state, but the rules are well-understood by those making estimates of delegate counts.

So, you can rely on the delegate count estimates you see after each primary's results are known, but there will be minor shifts as each state convention is held.