How can Response to Intervention (RTI) and Multi-tiered System of Support (MTSS) support English Language Learners with and without Disabilities?

How does RTI affect affect English language learner (ELL) students who are already receiving ELL pull out supports? Are we still providing Tier 2 interventions in addition to the ELL class?
This response recently posted on the RTI Action Network is summarized below:

In her response Dr. Claudia Rinaldi provides recommendations to help teachers working with ELL students within any tier of RTI. One key consideration for serving ELL students is how to leverage RTI teams to increase collaboration and data-driven instructional planning and progress monitoring for all students, including ELL students with and without disabilities.
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